Earcups Type:Semi-open Max Output:54mW Number Of Drivers:2 Charging Method:Cable Headphone Pads Material:Other Magnet Type:Ferrite Total Harmonic Distortion:1% Impedance Range:up to 32 Ω Bluetooth Version:5.0 Package List:User Manual Charging Cable 3.5mm Jack Adapter Features:waterproof With Microph..