DC battery wireless digital doorbell with apple design

1.Unique apple-shape design

2.Hi-low volume adjustment
 

3.12 music with 16 chord;sweet sounds for selection           

4.Remote range:>120 meters                                

5.Frequency:315/433 MHz                                           

6.Power: Receiver:AA1.5V*3PCS                                              

Transmitter: 23A/12V*1PCS