CP925 ; Optima HD IP conference phone ; flannel-wrapped ; ; 20-foot (6-metre) 360-degree voice pickup ; Built-in 7-microphone array, 360-degree voice pickup ; 5-way conference call ; Built-in 2.4 GHz/5 GHz Wi-Fi, 802.11a/b/g/n ; Built-in Bluetooth 4.2 ; Local 3-way PSTN conferencing via Yealink CPN10 ; with power supply ; Optional AC PoE injector, SKU # POE30, optional Bluetooth wireless microphone, SKU # CPW65.