Yealink CP700 is the portable, personal speakerphone that rewards you with a trouble-free plug and play connectivity, so that you can connect it to your PC, tablet and smartphone via Bluetooth wireless pairing and USB wired connection. CP700 General Features: Speakerphone size: ( Ø)120x(h)28mm Speakerphone weight: 220 g / 7.76 oz Connectivity: USB 2.0 & Bluetooth USB cable length: 2.6 feet / 0.8 meter Touch Buttons: power, Bluetooth, Call answer, Call hangup, Volume up, Volume down, Mute, Voice assistant/Teams Wireless Technology: Bluetooth standard: Bluetooth 4.0 Wireless Range: 100 feet / 30 meters Supported Bluetooth profiles: Hands free profile v1.7, A2DP v1.2, AVRCP v1.3 PC USB Bluetooth dongle (Yealink BT50): USB BT audio device/HID dongle. Bluetooth 5.0 Battery: Lithium Polymer Capacity: 1420mAh Charging time/power: 3 hours (5V/500mA) Max. charge current1.4A Talk time: 10 hours Standby time: 360 days (Power safe after 30min) Microphone & Speaker: Type: Omnidirectional microphone Signal to Noise Ratio (SNR): +58 dB Pickup range: 5 feet / 1.5 meters Frequency range - Conference mode: 100Hz-8kHz Peak output power: 5W Root Mean Square (RMS): 3W Sensitivity: 81dbSPL +/-3db SPL @1m,1W Frequency range – Conference mode: 150Hz-8kHz Frequency range – Music mode: 150Hz-16kHz Audio: Optima HD voice Wideband Audio Audio duplex Noise suppression (NS) Digital Signal Processing (DSP) Acoustic echo cancellation (AEC)