High-quality and best service is the tenet of our company couldn't find a such quality with the price levelse don't worry,we provide one Year warranty and 7 days no reason return. Just Try It.

Specification:
Working voltage: AC9V/1A
Main sound (sub sound): 3W
Inside microphone: -48db 20Hz-20KHz
Outside microphone: -48db 20Hz-16KHz
Exterior size: 158x87x46mm / 78x20mm

Hot Spots:
Streamline design. Main unit is made of luxurious aluminum alloy and internal microphone for extension. One-wire connection and simple installation
High quality speaker for main unit and extension. High sensitive microphone. Longer metal tube microphone for dual-way intercommunication
Adjustable volume with separate switch
Auto dual-way intercommunication without pressing any button
External speaker, slim fit design
Anti-interference and noise-free function
Comprehensive application of electro-acoustic technology experience, the selection of high performance electro-acoustic circuit design, the output power up to 3W, voice clear and loud voice distinguished high
Inside and outside the two-way voice signal output(recording by the bank teller), a stereo jack output mode can prevent voice recording function controlled by the power switch and the function buttons

Application: bank, securities, hospital, bus station Where guard glass again theft is installed

What is in box:
1 x Retevis RT-9908 Dual-way counter interphone
1 x External speaker
1 x Charger