Remote APP control.   Compatible with multiple switches, such as lamp switch, TV set, coffee machine, door switch, etc. Turning ordinary furniture into smart ones.   Small and compact, it can be used anywhere.   Rocker arm control in one step.   Long standby and USB convenient charging.      Easy set up, no tools required.   Power Supply: Lithium battery 3.7V 360mAh   Power Source: USB Charging   Bluetooth: 4.0 or higher   Compatible: for Android 6.1 and later, for iOS 8.0 and later   Colour:white   Material:ABS   Size: 44 x 38 x 25mm      Package Contents:   1 x Smart Switch Button Pusher   2 x Add-on   2 x Spare Sticker   1 x English User Manual(With App QR Code Download)      Only the above package content, other products are not included.   Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.