Table of Content

1 Porous Smart Socket Market Overview
1.1 Product Overview and Scope of Porous Smart Socket
1.2 Porous Smart Socket Segment by Type
1.2.1 Global Porous Smart Socket Sales Growth Rate Comparison by Type (2021-2027)
1.2.2 Automatic Control of Safe Energy-Saving Socket
1.2.3 Intelligent Standby Power Saving Socket
1.2.4 Others
1.3 Porous Smart Socket Segment by Application
1.3.1 Global Porous Smart Socket Sales Comparison by Application: (2021-2027)
1.3.2 Commercial Use
1.3.3 Household Use
1.4 Global Porous Smart Socket Market Size Estimates and Forecasts
1.4.1 Global Porous Smart Socket Revenue 2016-2027
1.4.2 Global Porous Smart Socket Sales 2016-2027
1.4.3 Porous Smart Socket Market Size by Region: 2016 Versus 2021 Versus 2027

2 Porous Smart Socket Market Competition by Manufacturers
2.1 Global Porous Smart Socket Sales Market Share by Manufacturers (2016-2021)
2.2 Global Porous Smart Socket Revenue Market Share by Manufacturers (2016-2021)
2.3 Global Porous Smart Socket Average Price by Manufacturers (2016-2021)
2.4 Manufacturers Porous Smart Socket Manufacturing Sites, Area Served, Product Type
2.5 Porous Smart Socket Market Competitive Situation and Trends
2.5.1 Porous Smart Socket Market Concentration Rate
2.5.2 The Global Top 5 and Top 10 Largest Porous Smart Socket Players Market Share by Revenue
2.5.3 Global Porous Smart Socket Market Share by Company Type (Tier 1, Tier 2 and Tier 3)
2.6 Manufacturers Mergers & Acquisitions, Expansion Plans

3 Porous Smart Socket Retrospective Market Scenario by Region
3.1 Global Porous Smart Socket Retrospective Market Scenario in Sales by Region: 2016-2021
3.2 Global Porous Smart Socket Retrospective Market Scenario in Revenue by Region: 2016-2021
3.3 North America Porous Smart Socket Market Facts & Figures by Country
3.3.1 North America Porous Smart Socket Sales by Country
3.3.2 North America Porous Smart Socket Revenue by Country
3.3.3 United States
3.3.4 Canada
3.4 Europe Porous Smart Socket Market Facts & Figures by Country
3.4.1 Europe Porous Smart Socket Sales by Country
3.4.2 Europe Porous Smart Socket Revenue by Country
3.4.3 Germany
3.4.4 France
3.4.5 U.K.
3.4.6 Italy
3.4.7 Russia
3.5 Asia Pacific Porous Smart Socket Market Facts & Figures by Region
3.5.1 Asia Pacific Porous Smart Socket Sales by Region
3.5.2 Asia Pacific Porous Smart Socket Revenue by Region
3.5.3 China
3.5.4 Japan
3.5.5 South Korea
3.5.6 India
3.5.7 Australia
3.5.8 Taiwan
3.5.9 Indonesia
3.5.10 Thailand
3.5.11 Malaysia
3.6 Latin America Porous Smart Socket Market Facts & Figures by Country
3.6.1 Latin America Porous Smart Socket Sales by Country
3.6.2 Latin America Porous Smart Socket Revenue by Country
3.6.3 Mexico
3.6.4 Brazil
3.6.5 Argentina
3.6.6 Colombia
3.7 Middle East and Africa Porous Smart Socket Market Facts & Figures by Country
3.7.1 Middle East and Africa Porous Smart Socket Sales by Country
3.7.2 Middle East and Africa Porous Smart Socket Revenue by Country
3.7.3 Turkey
3.7.4 Saudi Arabia
3.7.5 UAE
4 Global Porous Smart Socket Historic Market Analysis by Type
4.1 Global Porous Smart Socket Sales Market Share by Type (2016-2021)
4.2 Global Porous Smart Socket Revenue Market Share by Type (2016-2021)
4.3 Global Porous Smart Socket Price by Type (2016-2021)

5 Global Porous Smart Socket Historic Market Analysis by Application
5.1 Global Porous Smart Socket Sales Market Share by Application (2016-2021)
5.2 Global Porous Smart Socket Revenue Market Share by Application (2016-2021)
5.3 Global Porous Smart Socket Price by Application (2016-2021)

6 Key Companies Profiled
6.1 Belkin International
6.1.1 Belkin International Corporation Information
6.1.2 Belkin International Description and Business Overview
6.1.3 Belkin International Porous Smart Socket Sales, Revenue and Gross Margin (2016-2021)
6.1.4 Belkin International Porous Smart Socket Product Portfolio
6.1.5 Belkin International Recent Developments/Updates
6.2 Insteon
6.2.1 Insteon Corporation Information
6.2.2 Insteon Description and Business Overview
6.2.3 Insteon Porous Smart Socket Sales, Revenue and Gross Margin (2016-2021)
6.2.4 Insteon Porous Smart Socket Product Portfolio
6.2.5 Insteon Recent Developments/Updates
6.3 Etekcity
6.3.1 Etekcity Corporation Information
6.3.2 Etekcity Description and Business Overview
6.3.3 Etekcity Porous Smart Socket Sales, Revenue and Gross Margin (2016-2021)
6.3.4 Etekcity Porous Smart Socket Product Portfolio
6.3.5 Etekcity Recent Developments/Updates
6.4 Edimax
6.4.1 Edimax Corporation Information
6.4.2 Edimax Description and Business Overview
6.4.3 Edimax Porous Smart Socket Sales, Revenue and Gross Margin (2016-2021)
6.4.4 Edimax Porous Smart Socket Product Portfolio
6.4.5 Edimax Recent Developments/Updates
6.5 Xiaomi
6.5.1 Xiaomi Corporation Information
6.5.2 Xiaomi Description and Business Overview
6.5.3 Xiaomi Porous Smart Socket Sales, Revenue and Gross Margin (2016-2021)
6.5.4 Xiaomi Porous Smart Socket Product Portfolio
6.5.5 Xiaomi Recent Developments/Updates
6.6 BroadLink
6.6.1 BroadLink Corporation Information
6.6.2 BroadLink Description and Business Overview
6.6.3 BroadLink Porous Smart Socket Sales, Revenue and Gross Margin (2016-2021)
6.6.4 BroadLink Porous Smart Socket Product Portfolio
6.6.5 BroadLink Recent Developments/Updates
6.7 Shenzhen Orvibo Electronics
6.6.1 Shenzhen Orvibo Electronics Corporation Information
6.6.2 Shenzhen Orvibo Electronics Description and Business Overview
6.6.3 Shenzhen Orvibo Electronics Porous Smart Socket Sales, Revenue and Gross Margin (2016-2021)
6.4.4 Shenzhen Orvibo Electronics Porous Smart Socket Product Portfolio
6.7.5 Shenzhen Orvibo Electronics Recent Developments/Updates
6.8 Samsung
6.8.1 Samsung Corporation Information
6.8.2 Samsung Description and Business Overview
6.8.3 Samsung Porous Smart Socket Sales, Revenue and Gross Margin (2016-2021)
6.8.4 Samsung Porous Smart Socket Product Portfolio
6.8.5 Samsung Recent Developments/Updates
6.9 Konke
6.9.1 Konke Corporation Information
6.9.2 Konke Description and Business Overview
6.9.3 Konke Porous Smart Socket Sales, Revenue and Gross Margin (2016-2021)
6.9.4 Konke Porous Smart Socket Product Portfolio
6.9.5 Konke Recent Developments/Updates
6.10 Nyrius
6.10.1 Nyrius Corporation Information
6.10.2 Nyrius Description and Business Overview
6.10.3 Nyrius Porous Smart Socket Sales, Revenue and Gross Margin (2016-2021)
6.10.4 Nyrius Porous Smart Socket Product Portfolio
6.10.5 Nyrius Recent Developments/Updates
6.11 Gongniu Group
6.11.1 Gongniu Group Corporation Information
6.11.2 Gongniu Group Porous Smart Socket Description and Business Overview
6.11.3 Gongniu Group Porous Smart Socket Sales, Revenue and Gross Margin (2016-2021)
6.11.4 Gongniu Group Porous Smart Socket Product Portfolio
6.11.5 Gongniu Group Recent Developments/Updates

7 Porous Smart Socket Manufacturing Cost Analysis
7.1 Porous Smart Socket Key Raw Materials Analysis
7.1.1 Key Raw Materials
7.1.2 Key Suppliers of Raw Materials
7.2 Proportion of Manufacturing Cost Structure
7.3 Manufacturing Process Analysis of Porous Smart Socket
7.4 Porous Smart Socket Industrial Chain Analysis

8 Marketing Channel, Distributors and Customers
8.1 Marketing Channel
8.2 Porous Smart Socket Distributors List
8.3 Porous Smart Socket Customers

9 Porous Smart Socket Market Dynamics
9.1 Porous Smart Socket Industry Trends
9.2 Porous Smart Socket Growth Drivers
9.3 Porous Smart Socket Market Challenges
9.4 Porous Smart Socket Market Restraints

10 Global Market Forecast
10.1 Porous Smart Socket Market Estimates and Projections by Type
10.1.1 Global Forecasted Sales of Porous Smart Socket by Type (2022-2027)
10.1.2 Global Forecasted Revenue of Porous Smart Socket by Type (2022-2027)
10.2 Porous Smart Socket Market Estimates and Projections by Application
10.2.1 Global Forecasted Sales of Porous Smart Socket by Application (2022-2027)
10.2.2 Global Forecasted Revenue of Porous Smart Socket by Application (2022-2027)
10.3 Porous Smart Socket Market Estimates and Projections by Region
10.3.1 Global Forecasted Sales of Porous Smart Socket by Region (2022-2027)
10.3.2 Global Forecasted Revenue of Porous Smart Socket by Region (2022-2027)

11 Research Finding and Conclusion

12 Methodology and Data Source
12.1 Methodology/Research Approach
12.1.1 Research Programs/Design
12.1.2 Market Size Estimation
12.1.3 Market Breakdown and Data Triangulation
12.2 Data Source
12.2.1 Secondary Sources
12.2.2 Primary Sources
12.3 Author List
12.4 Disclaimer

List of Figure

List of Tables
Table 1. Global Porous Smart Socket Sales (K Units) Growth Rate Comparison by Type (2021-2027)
Table 2. Global Porous Smart Socket Sales (K Units) Comparison by Application (2021-2027)
Table 3. Global Porous Smart Socket Market Size by Region (US$ Million) (2016 VS 2021 VS 2027)
Table 4. Key Manufacturers Porous Smart Socket Covered in This Study
Table 5. Global Porous Smart Socket Sales (K Units) of Key Manufacturers (2016-2021)
Table 6. Global Porous Smart Socket Sales Market Share by Manufacturers (2016-2021)
Table 7. Global Porous Smart Socket Revenue (US$ Million) by Manufacturers (2016-2021)
Table 8. Global Porous Smart Socket Revenue Share by Manufacturers (2016-2021)
Table 9. Global Market Porous Smart Socket Average Price (US$/Unit) of Key Manufacturers (2016-2021)
Table 10. Manufacturers Porous Smart Socket Manufacturing Sites and Area Served
Table 11. Manufacturers Porous Smart Socket Product Type
Table 12. Global Manufacturers Market Concentration Ratio (CR5 and HHI)
Table 13. Global Porous Smart Socket by Company Type (Tier 1, Tier 2 and Tier 3) (based on the Revenue in Porous Smart Socket as of 2020)
Table 14. Manufacturers Mergers & Acquisitions, Expansion Plans
Table 15. Global Porous Smart Socket Sales by Region (2016-2021) & (K Units)
Table 16. Global Porous Smart Socket Sales Market Share by Region (2016-2021)
Table 17. Global Porous Smart Socket Revenue by Region (2016-2021) & (US$ Million)
Table 18. North America Porous Smart Socket Sales by Country (2016-2021) & (K Units)
Table 19. North America Porous Smart Socket Sales Market Share by Country (2016-2021)
Table 20. North America Porous Smart Socket Revenue by Country (2016-2021) & (US$ Million)
Table 21. North America Porous Smart Socket Revenue Market Share by Country (2016-2021)
Table 22. Europe Porous Smart Socket Sales by Country (2016-2021) & (K Units)
Table 23. Europe Porous Smart Socket Sales Market Share by Country (2016-2021)
Table 24. Europe Porous Smart Socket Revenue by Country (2016-2021) & (US$ Million)
Table 25. Europe Porous Smart Socket Revenue Market Share by Country (2016-2021)
Table 26. Asia Pacific Porous Smart Socket Sales by Region (2016-2021) & (K Units)
Table 27. Asia Pacific Porous Smart Socket Sales Market Share by Region (2016-2021)
Table 28. Asia Pacific Porous Smart Socket Revenue by Region (2016-2021) & (US$ Million)
Table 29. Asia Pacific Porous Smart Socket Revenue Market Share by Region (2016-2021)
Table 30. Latin America Porous Smart Socket Sales by Country (2016-2021) & (K Units)
Table 31. Latin America Porous Smart Socket Sales Market Share by Country (2016-2021)
Table 32. Latin America Porous Smart Socket Revenue by Country (2016-2021) & (US$ Million)
Table 33. Latin America Porous Smart Socket Revenue Market Share by Country (2016-2021)
Table 34. Middle East and Africa Porous Smart Socket Sales by Country (2016-2021) & (K Units)
Table 35. Middle East and Africa Porous Smart Socket Sales Market Share by Country (2016-2021)
Table 36. Middle East and Africa Porous Smart Socket Revenue by Country (2016-2021) & (US$ Million)
Table 37. Middle East and Africa Porous Smart Socket Revenue Market Share by Country (2016-2021)
Table 38. Global Porous Smart Socket Sales (K Units) by Type (2016-2021)
Table 39. Global Porous Smart Socket Sales Market Share by Type (2016-2021)
Table 40. Global Porous Smart Socket Revenue (Million US$) by Type (2016-2021)
Table 41. Global Porous Smart Socket Revenue Share by Type (2016-2021)
Table 42. Global Porous Smart Socket Price (US$/Unit) by Type (2016-2021)
Table 43. Global Porous Smart Socket Sales (K Units) by Application (2016-2021)
Table 44. Global Porous Smart Socket Sales Market Share by Application (2016-2021)
Table 45. Global Porous Smart Socket Revenue (Million US$) by Application (2016-2021)
Table 46. Global Porous Smart Socket Revenue Share by Application (2016-2021)
Table 47. Global Porous Smart Socket Price (US$/Unit) by Application (2016-2021)
Table 48. Belkin International Corporation Information
Table 49. Belkin International Description and Business Overview
Table 50. Belkin International Porous Smart Socket Sales (K Units), Revenue (Million US$), Price (US$/Unit) and Gross Margin (2016-2021)
Table 51. Belkin International Porous Smart Socket Product
Table 52. Belkin International Recent Developments/Updates
Table 53. Insteon Corporation Information
Table 54. Insteon Description and Business Overview
Table 55. Insteon Porous Smart Socket Sales (K Units), Revenue (Million US$), Price (US$/Unit) and Gross Margin (2016-2021)
Table 56. Insteon Porous Smart Socket Product
Table 57. Insteon Recent Developments/Updates
Table 58. Etekcity Corporation Information
Table 59. Etekcity Description and Business Overview
Table 60. Etekcity Porous Smart Socket Sales (K Units), Revenue (Million US$), Price (US$/Unit) and Gross Margin (2016-2021)
Table 61. Etekcity Porous Smart Socket Product
Table 62. Etekcity Recent Developments/Updates
Table 63. Edimax Corporation Information
Table 64. Edimax Description and Business Overview
Table 65. Edimax Porous Smart Socket Sales (K Units), Revenue (Million US$), Price (US$/Unit) and Gross Margin (2016-2021)
Table 66. Edimax Porous Smart Socket Product
Table 67. Edimax Recent Developments/Updates
Table 68. Xiaomi Corporation Information
Table 69. Xiaomi Description and Business Overview
Table 70. Xiaomi Porous Smart Socket Sales (K Units), Revenue (Million US$), Price (US$/Unit) and Gross Margin (2016-2021)
Table 71. Xiaomi Porous Smart Socket Product
Table 72. Xiaomi Recent Developments/Updates
Table 73. BroadLink Corporation Information
Table 74. BroadLink Description and Business Overview
Table 75. BroadLink Porous Smart Socket Sales (K Units), Revenue (Million US$), Price (US$/Unit) and Gross Margin (2016-2021)
Table 76. BroadLink Porous Smart Socket Product
Table 77. BroadLink Recent Developments/Updates
Table 78. Shenzhen Orvibo Electronics Corporation Information
Table 79. Shenzhen Orvibo Electronics Description and Business Overview
Table 80. Shenzhen Orvibo Electronics Porous Smart Socket Sales (K Units), Revenue (Million US$), Price (US$/Unit) and Gross Margin (2016-2021)
Table 81. Shenzhen Orvibo Electronics Porous Smart Socket Product
Table 82. Shenzhen Orvibo Electronics Recent Developments/Updates
Table 83. Samsung Corporation Information
Table 84. Samsung Description and Business Overview
Table 85. Samsung Porous Smart Socket Sales (K Units), Revenue (Million US$), Price (US$/Unit) and Gross Margin (2016-2021)
Table 86. Samsung Porous Smart Socket Product
Table 87. Samsung Recent Developments/Updates
Table 88. Konke Corporation Information
Table 89. Konke Description and Business Overview
Table 90. Konke Porous Smart Socket Sales (K Units), Revenue (Million US$), Price (US$/Unit) and Gross Margin (2016-2021)
Table 91. Konke Porous Smart Socket Product
Table 92. Konke Recent Developments/Updates
Table 93. Nyrius Corporation Information
Table 94. Nyrius Description and Business Overview
Table 95. Nyrius Porous Smart Socket Sales (K Units), Revenue (Million US$), Price (US$/Unit) and Gross Margin (2016-2021)
Table 96. Nyrius Porous Smart Socket Product
Table 97. Nyrius Recent Developments/Updates
Table 98. Gongniu Group Corporation Information
Table 99. Gongniu Group Description and Business Overview
Table 100. Gongniu Group Porous Smart Socket Sales (K Units), Revenue (Million US$), Price (US$/Unit) and Gross Margin (2016-2021)
Table 101. Gongniu Group Porous Smart Socket Product
Table 102. Gongniu Group Recent Developments/Updates
Table 103. Production Base and Market Concentration Rate of Raw Material
Table 104. Key Suppliers of Raw Materials
Table 105. Porous Smart Socket Distributors List
Table 106. Porous Smart Socket Customers List
Table 107. Porous Smart Socket Market Trends
Table 108. Porous Smart Socket Growth Drivers
Table 109. Porous Smart Socket Market Challenges
Table 110. Porous Smart Socket Market Restraints
Table 111. Global Porous Smart Socket Sales Forecast by Type (2022-2027) & (K Units)
Table 112. Global Porous Smart Socket Sales Market Share Forecast by Type (2022-2027)
Table 113. Global Porous Smart Socket Revenue Forecast by Type (2022-2027) & (US$ Million)
Table 114. Global Porous Smart Socket Revenue Market Share Forecast by Type (2022-2027)
Table 115. Global Porous Smart Socket Sales Forecast by Application (2022-2027) & (K Units)
Table 116. Global Porous Smart Socket Sales Market Share Forecast by Application (2022-2027)
Table 117. Global Porous Smart Socket Revenue Forecast by Application (2022-2027) & (US$ Million)
Table 118. Global Porous Smart Socket Revenue Market Share Forecast by Application (2022-2027)
Table 119. Global Porous Smart Socket Sales Forecast by Region (2022-2027) & (K Units)
Table 120. Global Porous Smart Socket Sales Market Share Forecast by Region (2022-2027)
Table 121. Global Porous Smart Socket Revenue Forecast by Region (2022-2027) & (US$ Million)
Table 122. Global Porous Smart Socket Revenue Market Share Forecast by Region (2022-2027)
Table 123. Research Programs/Design for This Report
Table 124. Key Data Information from Secondary Sources
Table 125. Key Data Information from Primary Sources
List of Figures
Figure 1. Product Picture of Porous Smart Socket
Figure 2. Global Porous Smart Socket Market Share by Type in 2020 & 2027
Figure 3. Automatic Control of Safe Energy-Saving Socket Product Picture
Figure 4. Intelligent Standby Power Saving Socket Product Picture
Figure 5. Others Product Picture
Figure 6. Global Porous Smart Socket Market Share by Application in 2020 & 2027
Figure 7. Commercial Use
Figure 8. Household Use
Figure 9. Global Porous Smart Socket Revenue, (US$ Million), 2016 VS 2021 VS 2027
Figure 10. Global Porous Smart Socket Market Size 2016-2027 (US$ Million)
Figure 11. Global Porous Smart Socket Sales 2016-2027 (K Units)
Figure 12. Global Porous Smart Socket Market Size Market Share by Region: 2016 VS 20210 VS 2027
Figure 13. Porous Smart Socket Sales Share by Manufacturers in 2020
Figure 14. Global Porous Smart Socket Revenue Share by Manufacturers in 2020
Figure 15. The Global 5 and 10 Largest Porous Smart Socket Players: Market Share by Revenue in 2020
Figure 16. Porous Smart Socket Market Share by Company Type (Tier 1, Tier 2 and Tier 3): 2016 VS 2021
Figure 17. Global Porous Smart Socket Sales Market Share by Region (2016-2021)
Figure 18. Global Porous Smart Socket Sales Market Share by Region in 2020
Figure 19. Global Porous Smart Socket Revenue Market Share by Region (2016-2021)
Figure 20. Global Porous Smart Socket Revenue Market Share by Region in 2020
Figure 21. United States Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 22. Canada Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 23. Germany Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 24. France Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 25. U.K. Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 26. Italy Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 27. Russia Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 28. China Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 29. Japan Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 30. South Korea Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 31. India Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 32. Australia Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 33. Taiwan Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 34. Indonesia Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 35. Thailand Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 36. Malaysia Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 37. Mexico Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 38. Brazil Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 39. Argentina Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 40. Colombia Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 41. Turkey Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 42. Saudi Arabia Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 43. UAE Porous Smart Socket Revenue Growth Rate (2016-2021) (US$ Million)
Figure 44. Sales Market Share of Porous Smart Socket by Type (2016-2021)
Figure 45. Sales Market Share of Porous Smart Socket by Application (2016-2021)
Figure 46. Sales Market Share of Porous Smart Socket by Application in 2020
Figure 47. Revenue Share of Porous Smart Socket by Application (2016-2021)
Figure 48. Revenue Share of Porous Smart Socket by Application in 2020
Figure 49. Manufacturing Cost Structure of Porous Smart Socket
Figure 50. Manufacturing Process Analysis of Porous Smart Socket
Figure 51. Porous Smart Socket Industrial Chain Analysis
Figure 52. Channels of Distribution
Figure 53. Distributors Profiles
Figure 54. Bottom-up and Top-down Approaches for This Report
Figure 55. Data Triangulation
Figure 56. Key Executives Interviewed