[Wifi+Bluetooth Dual Mode] Connect faster with dual-mode technology. Connection speed is 2 times faster than Wi-Fi-only models (available on Wi-Fi models only, not available on Zigbee models). [40A Capacity] Suitable for high-power appliances such as air conditioners. Please note the maximum power rating. [Requires Neutral Wire] Requires a neutral wire for installation; ensures higher safety and stable performance. [Offline Function] When the device goes offline, the app will notify you after 30 minutes. [APP Remote Control] Control the switch anytime, anywhere using the mobile app. [Voice Control] Works with Alexa and Google Assistant, Tmall Genie. [Set Timing] Schedule connected devices to turn on or off at specific times. For example, schedule the living room fan to turn on in the morning or set children's lights to turn off at bedtime. [3 Restart Modes] Choose from default on, default off, or memory status after power recovery. [Backlight Option] Adjustable backlight settings allow easy operation without disturbing rest (available on Wi-Fi models only, not available on Zigbee models). [Family Sharing Function] Share control with family members to create a smart home experience. [Sharing Function] Invite family members for shared device control. [Group Function] Group multiple devices and control them together for added convenience. EU Product Dimensions: 86 x 86 x 35mm Wi-Fi Standard: 2.4GHz 802.11b/g/n Panel Material: Tempered glass Rated Current: 40A Input Voltage: AC 220V, 50/60Hz Color: Black Material: ABS Package Contents: 1 x Smart Switch Note: Light reflection and display differences may cause slight color variation between image and actual item. Measurement tolerance: +/- 1-3cm.