XO EP53 Handsfree in-ear Headphones 3.5mm Black

Headphone type : In-ear
Plug : 3.5 (φmm)
Sound principle : moving coil type
Speaker diameter : (10φmm)
Microphone : MIC -42±2dB(dB)
Wire length : main line φ2.3 4C 0.8M TPE (8 0.06+200D nylon) branch line φ1.5 2C 0.35M 2TPE black (8*0.06+200D nylon) L=1.2m
Speaker impedance : 16Ω±15% at 1kHz
Sensitivity : 92±3dB(dB)
Speaker power : 3-5MW
Frequency response range : 20-20000 HZ (hz)
Product function : play/pause/answer/close/up and down/reject
Product material : TPE wire material, ABS material, rubber oil process, plating process