CACAZI FA50 1 For 1 Push-button Self-generating Wireless Doorbell, Plug:EU Plug(Black) Filter-Fiber Optic Jumper General Compatible with Lenovo: YOGA

General Compatible with Lenovo:  YOGA A12

General Compatible with OnePlus:  5

7) USB Adapter A (Rectangular Connector) Female to Mini micro B Male

Just connect to a computer USB socket for automatic installation of driver

CACAZI FA50 1 For 1 Push-button Self-generating Wireless Doorbell, Plug:EU Plug(Black) Filter-Fiber Optic Jumper General Compatible with Lenovo: YOGA1. Material: ABS, electronic components 2. Remote control distance: 150 meters 3. Built in music: 60 songs 4. Volume: 5 speed adjustment 5. Working principle: The transmitter is installed outside the door, the receiver is installed on the power socket, press the transmitter to ring the bell, the receiver immediately rings and flashes to remind 6. The doorbell has 60 built in chord music, you can choose according to your preference 7. Strong