Features: Takstar DA-237 talk-back system is specially designed for windows intercom where protection against bandits and sabotage is necessary, such as bank, stock-exchange, railway station, post office, insurance company, ticket office, hospital, etc. Full duplex voice technology automatically recognizes and process voice signal; special anti-side tone processing chip features automatic squelch control and effectively minimize the howling. Full automatic communication control technology, wall mount unit(external unit) features integrated microphone and speaker, one cable for convenient connection of the wall mount unit and desktop unit. Excellent circuitry for high output power up to 3W and clear sound quality; independent mute control on desktop unit for both external and internal units. Audio input function input signal like PC voice warning for customer listening; Line output function for recording of internal/external voice signal; cable protection design on desktop unit for better user experience.Specifications: Operating Voltage: DC 12V/1A Output Power: 3W(max) Frequency Response: 100Hz-12kHz Desktop Unit Dimensions: 18.2 * 12 * 6cm / 7.17 * 4.72 * 2.36in Wall Mount Unit Dimensions: 8.3 * 6 * 2.3cm / 3.27 * 2.36 * 0.91in Package Size: 23.7 * 19 * 11.5cm / 9.33 * 7.48 * 4.53in Package Weight: 950g / 33.51ozPackage List: 1 * desktop unit 1 * wall mount unit 1 * power adaptor (DC12V/1A) 4 * adhesive stickers 1 * user manual
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