1. The work voltage of the receiver: AC 220V or 110V

2. Static electricity of the receiver 0.45mA(Ultra-low power, can extend battery life)

3. Work Frequency: 315MHz

4. Remote Control /Incept Distance 40m(in open air)

5. Work Voltage of the Emitter: 12V(Battery Model: 23A12V)

6. Work Electricity of the Emitter 15mA(20 times a day by calculating, a high quality battery can use for a year)

7. LED Indicator: Press the send button, LED indicator light will flash, emitter work and the receiver receive the order and then send out the beautiful music reminded you the VIP visit, the blue-ray LED of the receiver will regular flash along with the music.

8. Music source: 38songs supply for choice, Use the External button "up/down"to
Finish. (the music include AsiaEuropeAmericas famous songs, also has 10 songs of Arab Music, Concert which the Middle East customers' like).

9. The function of volume regulate: Highmiddlelow three volume can choice, use the External switch(or button)to finish.