The Yealink CPW90 is a Wireless Expansion Microphone which works with the Yealink CP960 conference phone as an audio input device. Dimensions for the microphone are:

• Width: 85.98mm
• Depth: 85.98mm
• Height: 16.35mm

Dimensions for the charge cradle are:

• Width: 190mm
• Depth: 86mm
• Height: 25.5mm

This device features optima HD voice and supports 10-foot (3 meter) 360-degree voice pickup range with echo cancellation. The Yealink CPW90 has a 800mAh battery capacity and gives you a talk time of up to 19-hours and 11-day standby time. Additional features include full duplex technology and muting the microphone with touchpad, making the wireless expansion microphone suitable for organisations who need an optional microphone placement.