Headphone Specification:
ABS cover 40mm;
1530*1200MM cord PVC or TPE;
3.5*3P-plug with gold;
speaker 3016-32ΩM;
frequency range:20-20000Hz;
Rate power:20mW
Max.power:50mW
sensitivity 110+-4dB
Comfortable Thin Lycra Fabric Sport Earphone Anti-noise Sleeping Headphone Sweatband Sports Headband Stereo Headset