1. Material: ABS, electronic components 2. Features: long transmission distance, built-in 36 music ringtones, 4-level volume adjustment 3. Applicable range: 300 meters 4. Music: 36 pieces of music 5. Volume: 4 levels of volume 6. Receiver power supply mode: plug connection power supply 7. Transmitter battery: 12V 23A battery x 1 (delivery without battery) 8. Three kinds of plugs, you can choose according to your needs 9. The receiver has an indicator light, and the bell light is on 10. Strong penetrating ability to meet household needs 11. Long-distance barrier-free 300-meter penetration 12. The waterproof design of the transmitter can prevent the intrusion of rainwater, safe and durable 13. Product Dimensions: Transmitter: 4.5 x 8 x 2.2 cm, Receiver: 6.2 x 9 x 2.8 cm
