New Silver Retevis RT-9908 Anti-interference  Noise-Free Dual-Way Audio Record Output Counter Interphone/Radio/ Walkie Talkie  110V or 220V

Hot Spot:

• Auto dual-way  intercommunication without pressing any button

• Anti-interference  and noise-free function

• Dual-way audio  record output

Feature:

• All of our items are brand new.

• Anti-interference and noise-free function

• Two-way voice intercom communications technology,  automatic identification of processing speech signals during a call does not require  any action

• Dedicated anti-side tone processing chip, with  auto-mute function

• Application of fully automated call control, outside  the machine's microphone and speakers to use the integration of design and front-line  system of the host to connect, easy installation

• 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

Performance Data:

• Working voltage:  AC9V/1A

• Main sound  (sub sound): 3W

• Inside microphone:  -48db 20Hz-20KHz

• Outside microphone:  -48db 20Hz-16KHz

• Exterior size:  158x87x46cm/78x20mm

Pocket includes:

• 1 x Dual-way counter interphone

• 1 x External speaker

• 1 x Charger

• 1 x English  User manual