The Yealink CPW90 is a CP Wireless Expansion Mic which works as an audio input device for Yealink CP960 conference phone. It features superior audio technology and supports 360-degree voice pickup range at a radius of up to 10 feet (3 meters) without any wiring troubles. Capacitive mute touchpad plus place-and-charge charger cradle round out its user-friendly features, making Yealink CP Phone Wireless Expansion Mic CPW90 ease of use and being an ideal choice for organizations who need optimal microphone placement and wider room coverage. Features • Optima HD voice • Full duplex technology • 10-foot (3-meter) 360° voice pickup • Capacitive mute touchpad • Echo cancellation • DECT Technology Specification Features • Optima HD voice • Full duplex technology • Muting the microphone with touchpad • 10-foot (3-meter) 360° voice pickup • Distance between CP960 and CPW90: 20 meters • 800mAh battery capacity • 19-hour talking time • 11-day standby time Physical features • Dimension (W*D*H): Microphone: 85.98mm*85.98mm*16.35mm Charge Cradle: 190mm*86mm*25.5mm • Operating humidity: 10~90% • Storage temperature: -10~40°C (+14~104°F) Package content • 2 x CP Wireless Expansion Microphone • Charger Cradle • 0.3m Micro USB Cable • Quick Start Guide