CACAZI A19 1 For 4 Wireless Music Doorbell without Battery, Plug:UK Plug(Black) Filter-Safety Box Transmission power： 10 dBm

Transmission power： 10 dBm

Charging voltage: 5V 1A

Detection method: active pulse detection

Loading Container 20GP: 1045 cartons * 50 pcs = 52250 pcs

Power supply mode: USB charging / built-in lithium battery

CACAZI A19 1 For 4 Wireless Music Doorbell without Battery, Plug:UK Plug(Black) Filter-Safety Box Transmission power： 10 dBm1. Material: ABS, electronic components 2. Remote control distance: 300 meters 3. Built in music: 60 songs 4. Volume: 5 speed adjustment 5. Transmitter battery: 12V 23A battery x 1 (shipping without battery) 6. The doorbell has 60 built in chord music, you can choose according to your preference 7. Strong penetrability, the straight line distance on the open space can reach 300 meters (note: the actual use effect varies depending on the environment,