Item Type: Finger Robot Switch Material: ABS Color: White Wireless Connection: BLE (Bluetooth Low Energy) 4.2 Battery Type: Built In 500mAh CR2 Lithium Manganese Battery Application Scenarios: Compatible with a Variety of Switches, Such As Lights, Light Switches, Fans, TVs, Doorbells, Garage Doors, etc.1Universal: This smart switch button push rod is highly versatile, our finger robot switches are suitable for almost any rocker switch and buttons of any device. Lights or household appliances can be turned on/off automatically. 2Wireless APP Control: You can control the finger robot controller through the APP bluetooth. Set up a smart finger robot to turn everything on and off according to a schedule. 3Smart Control: You can control your smart finger robot with for Google Assistant voice assistants, and create home automation to let your smart home system trigger finger robot automatically. 4High Quality Material: The finger robot switch is made of ABS material, which is strong and stable, white in color, built in 500mAh CR2 lithium manganese battery, and has a long life. 5Wide Range of Applications: Whether it's an old garage door, light switch, fan, doorbell or coffee maker, finger robot can help intelligently control your old appliances with the push of buttons and switches. 1 x Wireless Switch 2 x Sticker