About This Dual Way Intercom Speaker: This window intercom system uses advanced two-way voice communication technology, which automatically recognizes and processes voice signals. The built-in interference reduction system improves sound clarity by minimizing disruptions. Adjustable Volumes: Separate volume controls allow you to adjust the internal and external microphone levels based on your needs. A recording port is available to connect recording devices, ensuring clear communication for extended periods. Adjustable Volumes: Separate volume controls allow you to adjust the internal and external microphone levels based on your needs. A recording port is available to connect recording devices, ensuring clear communication for extended periods. Durable Materials: The host unit of the intercom system is made from high-quality aluminum alloy, offering excellent stability and resistance. The microphone features a flexible metal hose design, enabling multi-angle adjustments for convenience. Wide Application: Perfect for bank counters, hospital registration windows, ticket offices, customs, security booths and other service windows. Strong anti-interference ability, stable performance for long-term use Overview Recommended Uses For Product : Restaurant,Window,Office Brand : WWMFS Model Name : WWMFS Window Speaker System Connectivity Technology : Auxiliary Connector Type : 3.5 mm Jack Special Feature : Stand, Volume Control Compatible Devices : Speaker Included Components : power adapter Polar Pattern : Unidirectional Audio Sensitivity : 42 Decibels