Remote Control Wireless Doorbell with LED 36 Melodies <br />Comes with 2 Batteries<br />Look no further. Amazing product quality， that's solidly built. Best of all， its very affordable price. Buy instantly.<br />Working Voltage of the Receiver: DC 3V <br />Battery Model: AA R6P2<br />Static Electricity of the Receiver: <0.45mA(Ultra-low power， can lengthen battery life)<br />Work Frequency: 315MHz<br />Remote Control /Incept Distance: >40m(In the open air)<br />Working Voltage of the Emitter: 12V(Battery Model: 23A12V)<br />Working Electricity of the Emitter: <15mA(20 times a day by calculating， a high quality battery can be enjoyed for a year)<br />LED Indicator: Press the Send button， LED indicator light will flash. Emitter works and the receiver receives the order and then sends out the beautiful music reminded by the VIP visit. The blue-ray LED of the receiver will regularly flash along with the music.<br />Music Source: 38 songs supplied for choice. Use the External button "up/down"to finish. (The music includes Asian， European， American famous songs， also has 10 songs of Arab Music and Concert the Middle East customers like).<br />The Function of Volume Regulation: High， middle and low-three volume choices. Use the External switch(or button) to finish.<br />2 x Transmitter<br />1 x Receiver<br />2 x Battery<br />4 x Fixed Screw<br />2 x Sticker<br />In original package<br /><img src="http://img6.eachbuyer.com/x13/p83/bf169_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x13/p83/bf169_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x13/p83/bf169_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x13/p83/bf169_4.jpg" />                                                        <img src="http://img6.eachbuyer.com/x13/p83/bf169_5.jpg" />                                                        <img src="http://img6.eachbuyer.com/x13/p83/bf169_6.jpg" />                                                        <img src="http://img6.eachbuyer.com/x13/p83/bf169_7.jpg" />