... ratio: 95dB, high quality sound.* 6th generation CVC for echo and noise reduction, ensuresincreased speech claritySPECIFICATIONBluetooth:* Bluetooth Specification ... Range:2.402-2.480GHZ, 2.4G ISM band,* Radio Performance: Receive Sensitivity of -90dBm, TX Power Max ... 10M,*Advanced multipoint support: enables connection to 2 phones for voice*Multipoint A2DP streaming: enables connection to 2 A2DP ...