Model: TG-EP28
Material: TPE + ABS
Driver unit: Dynamic
Speaker diameter: 10(φmm) 
Microphone: MIC -42±2dB(dB)
Wire length: 1.2±0.03m
Speaker impedance: 16Ω
Sensitivity: 98±3dB(dB)
Speaker power: 3-5MW
Frequency response range: 20-20000HZ (hz)
Feature: Play/Pause/Answer & Hang up Calls/Next & Last