Doorbells A&D

Descriptions: ● This set includes 1 piece of doorbell receiver and 1 piece of remote control(transmitter). Usage: Step 1: Plug the receiver into the 5V adapter and plug in the power supply. Step 2: P more→ress and hold the volume button for 5 seconds, the LED lights up long. Step 3: Press the remote control button, the receiver LED goes off once and then back to long light. Pairing is successful! You can start to use it. Features: 1. Remote control range can be up to 150 meters. Plug and play. 2. 30-song Ringtones: SOS Button Doorbell has 30 song ringtones to choose from, and you can choose your favorite music. Loud enough to hear at any of the 3 levels of volume and low enough so it won't