Material:Plastic Silica gel Category:Earphones & Headphones Earcups Type:Semi-open Max Output:3mW Number Of Drivers:1 Charging Method:Cable Headphone Pads Material:Silicone Magnet Type:Other Driver Diameter:8mm Total Harmonic Distortion:1% Impedance Range:up to 32 Ω Bluetooth Version:5.1..