The GE Cync Wire-Free Smart Light Dimmer Switch + Color Control adds lighting touch control and white color tuning at the switch. Now you can adjust the brightness and white color of your Cync or C by GE Tunable White and Full Color Smart Bulbs while you're at the switch. Like a wireless dimmer switch, adjust the white tones from warmer white to cooler white with the touch of a button. Want a switch closer to your bed or one that's reachable when you walk into your front door? Place a wireless wall switch where there isn't a switch today with no wires or screws needed, making it perfect for rentals or dorm rooms. The smart battery wall switch connects wirelessly to Cync and C by GE Smart Light Bulbs, Smart Plugs and Smart Switches to provide whole-room control. You can turn lights on and off or brighten and dim from anywhere in the room with our wireless dimmer light switch. The no wire switch comes with removable tape and a replaceable battery that's rated to last over two years. Pair the Bluetooth light switch with other Cync or C by GE switches, bulbs and plugs in the Cync App and create 3-way connections, control electric devices like fans and space heaters, and use touch to turn off lights on different circuits. WARNING: This product contains a lithium button/coin cell battery. Keep coin cell batteries out of reach of children.