1. Speaker: 40mm, Impedance: 32Ω±15%, Frequency response: 20~20000Hz, Sensitivity: 96dB±3dB 2. Cable length: 1.2m 3. Line control with Mic: Single functional key to operate music playing and answer calls, compatible with iOS and most Android versions; 4. Soft sponge earmuffs for comfortable wearing 5. Adjustable head beam
