Retevis RT-9908 Dual Way Window Intercom System Bank Counter Interphone Zero-touch For Business Store Bank Station Ticke

Feature Auto dual way intercommunication without pressing any buttonAnti interference and noise free functionDual way audio record outputThis model is 110 V 220V VoltageAll of our items are brand new Anti interference and noise free functionTwo way voice intercom communications technology automatic identification of processing speech signals during a call does not require any actionDedicated anti side tone processing chip with auto mute functionApplication 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 installationComprehensive 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 buttonsApplication bank securities bus station Where guard glass again theft is installe Specification Working voltage AC9V 1AMain sound sub sound 3WInside microphone 48db 20Hz 20KHzOutside microphone 48db 20Hz 16KHzExterior size 158 x 87 x 46cm 78 x 20 mm Package Included 1 x Dual way counter interphone1 x External speaker1 x Charger1 x English User manual