silica gel earmuff headphone with Mic
1 newest design headphone with separate Mic 2 use for computer&other media players 3 OEM is welcome
Specifications,
Speaker diameter: Φ40mm;
Speaker impedance: 32Ω ± 15%;
Frequency response range: 20HZ-20000HZ;
Rated power: 20MW;
Headphone sensitivity: 100dB S.P.L at 1KHz;
Microphone: -58dB ± 3db;
Pin size: 3.5mm;
Cord length: About 2.0 ± 0.1m;
silica gel earmuff headphone with Mic