Headphone Driver Size 1.57" / 40 mm Magnet Type Not Specified by Manufacturer Active Noise Cancellation Yes Design Not Specified by Manufacturer General Frequency Response 10 Hz to 22 kHz Sensitivity 92 dB at 1 kHz / 1 mW Impedance 16 Ohms Maximum Sound Pressure Level (SPL) 104 dB Maximum Power Handling Not Specified by Manufacturer Microphone Sensitivity -42 dB Wireless Connectivity Audio Compatibility Not Specified by Manufacturer Bluetooth Profiles A2DP 1.2 ARCP 1.4 HFP 1.6 HSP 1.2 Bluetooth 4.0 Bluetooth Transmitter Power 4 dBm Bluetooth Transmitter Modulation Π/4 DQPSK, 8DPSK, GFSK NFC None Wired Connectivity Audio Connector 1/8" (3.5 mm) Battery Battery Chemistry Lithium-Ion Polymer Capacity (mAh) 850 mAh Runtime 20 Hours (BT) 15 Hours (BT+ANC) Recharge Time 3 Hours Physical Material of Construction Not Specified by Manufacturer Dimensions (W x H x D) Not Specified by Manufacturer Weight 9.9 oz / 280 g Packaging Info Package Weight 1.75 lb Box Dimensions (LxWxH) 8.8 x 8.2 x 2.8"