Design: Over Ear, Driver: 40mm Neodymium, Active Noise Cancellation: 95% reduction of low frequency noise, Bluetooth Standard: 5, Bluetooth Chipset: CSR8670, Battery Type: Internal Lithium Polymer, Battery Life: 30Hr ANC Only, 15Hr Wireless Only, 12Hr ANC & Wireless, Impedance: 32? passive mode / 100? ANC mode, Sensitivity: (1mW@1kHz ±3dB): Passive 93dB ANC 95dB,Frequency Response: 20Hz – 20kHz, Nominal THD: Passive <0.5%@ 1kHz / Active <0.5% @ 1kHz, Special Features: External Audio Pass-through, Auto-Pause Technology, aptX & aptX Low Latency Support, Twin Pairing Connectivity, Hands Free Calling, CONNECTORS: Input: 3.5mm Audio (Female), Power: USB Type C (Female)