› acoustic-coil-tube-headset-earpiece

specification: Color: black white blue red 1. Plug type: 3.5mm straight plug 2. Speaker resistance: 16Ω 3. Speaker unit: 8mm 4. Frequency range: 20Hz~2000Hz 5. Rated power: 100 mw 6. Sensitivity: 108 db/mW 7. Headphone length: approximately. 1 m / 3.3...