Description:
The work voltage of the receiver is DC3V ,Batteries Model is AA R6P×2
Static electricity of the receiver Is less than or equal to0.45mA(Ultra-low power ,can extend battery life)
Work Frequency is 315MHz    
Remote Control /Incept Distance Is more than or equal to 40m(in open air)
Work Voltage of the Emitter Is less than or equal to12V(Battery Model 23A12V)
Work Electricity of the Emitter15mA(20 times a day by calculating,a high quality  battery can use for a year)
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.
Music source 38songs supply for choice, Use the External button "up/down"to finish. (the music include Asia,Europe,Americas famous songs,also has 10 songs of Arab Music Concert which the Middle East customers' like)  
The function of volume regulate high,middle,low three volume can choice,Use the External switch(or button)to finish.