CACAZI A06-DC 1 to 2 Battery Smart Home Wireless Waterproof Doorbell 1. Material: ABS 2. Features: safe, non-toxic, no smell, environmental protection, easy to clean 3. Applicable scene: living room, dining room, kitchen 4. Pumpkin shape design, practical and beautiful 5. Detachable design, easy to clean 6. Reusable, environmentally friendly and durable 7. Dimensions: 12 x 12.2 x 9.2 cm 8. Note: Only traps will be shipped, nothing else! 1. Material: ABS, electronic components 2. Features: long transmission distance, built-in 36 music ringtones, 4-level volume adjustment, LED flashing light reminder, strong penetrating ability 3. Applicable range: 300 meters 4. Music: 36 pieces of music 5. Volume: 4 levels of volume 6. Power supply mode: battery power supply 7. Receiver battery: No. 5 battery x 3 (battery is not included in delivery) 8. Transmitter battery: 12V 23A battery x 1 (delivery without battery) 9. Installation method: double-sided tape fixed screw fixed 10. Waterproof grade: IP44 11. The receiver has an indicator light, and the bell light is on 12. Strong penetrating ability to meet household needs 13. Long-distance barrier-free 300-meter penetration 14. The waterproof design of the transmitter can prevent the intrusion of rainwater, safe and durable 15. Product Dimensions: Transmitter: 7.7 x 4.6 x 2 cm, Receiver: 9.5 x 6.5 x 2.4 cm