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Just Try It. /b br br Specification: /b br Working voltage: AC9V/1A br Main sound sub sound: 3W br Inside microphone: -48db 20Hz-20KHz br Outside microphone: -48db 20Hz-16KHz br Exterior size: 158x87x46mm / 78x20mm br br Hot Spots: /b br Streamline design. Main unit is made of luxurious aluminum alloy and internal microphone for extension. One-wire connection and simple installation br High quality speaker for main unit and extension. High sensitive microphone. Longer metal tube microphone for dual-way intercommunication br Adjustable volume with separate switch br Auto dual-way intercommunication without pressing any button br External speaker slim fit design br Anti-interference and noise-free function br 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 br Inside and outside the two-way voice signal outputrecording by the bank teller a stereo jack output mode can prevent voice recording function controlled by the power switch and the function buttons br br Application: bank securities hospital bus station Where guard glass again theft is installed /b br br What is in box: /b br 1 x Retevis RT-9908 Dual-way counter interphone br 1 x External speaker br 1 x Charger br br
- High-quality speakers; window speaker intercom system brings clear and natural sound; high-sensitivity microphone with anti-interference function
- High power speaker; adopts high power input and output technology; loud and clear sound; with a dedicated side tone processing chip
- Streamlined design; full metal shell; beautiful appearance; high-quality materials and components make the signal output perform well
- The volume can be adjusted independently; the internal and external volume can be adjusted separately according to the environment
- Simple installation; turn on the power and press the switch; the power indicator will remind you of the corresponding working status
- Simple operation; simple design of three buttons; inner and outer volume adjustment knob and switch button; easy operation even without manual