Sony WHCH720NL Sony Wireless Noise Cancelling WHCH720NL Blue (WHCH720NL) Type Bluetooth over-ear headphones Headphone Connectivity Technology Bluetooth, 3.5mm Jack Headphone Type Over-Ear Wireless Range 10 m Microphone Yes Active Noise Cancellation (ANC) Yes Driver/Speaker Diameter 30 mm Sensitivity 99 dB Frequency 7 - 20 000 Hz Volume Control Yes Jack Q-ty 1 USB Q-ty 1 Charging Time 3.5 hours Battery Life 35 hours ANC/ON, 50 hours ANC/OFF Color Blue Weight 192 g