Features:
1. The receiver can distinguish which sensor sends out the signal according to the frequency of the different flashing lights, so as to notify the visitors in time
2. The four-level volume can be adjusted, which is convenient to deal with different occasions
3. Long distance 280 meters transmission, strong practicability
4. Voice speaker, clear voice
5. LED flashing light, multiple modes can be adjusted
6. Multifunctional doorbell, you can adjust the mode according to your needs

Product parameters:
1. Material: ABS, electronic components
2. Power consumption: 1W
3. Scope of application: 280 meters in a straight line on the open ground
4. Sensing range: 2-8 meters (related to ambient temperature)
5. Music selection: 46 songs
6. Volume selection: 4 levels of volume (adjustable mute)
7. Power supply voltage: Receiver: No. 5 battery x 3 (delivery without battery), Sensor: No. 7 battery x 3 (delivery without battery)
8. Dimensions: receiver: 11.6 x 6.4 x 2.6 cm, sensor: 4.5 x 8.2 x 7.4 cm