Retevis Dual-Way Counter Interphone RT-9908 Window Speaker Intercom System Slim
$45.00
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Window Intercom System Dual-Way Intercommunication Interphone Speaker System
$39.99
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About this item
It enables automatic two-way voice transmission, allowing natural conversation through glass without signal delay or the need to press any buttons. 1 x Dual-Way Window Intercom. The main unit has aluminum alloy shell,and the extension has built-in speaker, This system has simple connection for DIY operation.
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