Earphone Mic combo Microphone Mp3 Earphone

MP3 Earphone   Features VAL 42022 Frequency Range: 50Hz~20KHz Driver unit: Ndφ15mm Impedance: 32Ω Rated Power: 5mW Maximum power input: 10mw Microphone Unit: 6*5 -58+/-3dB Ling length: about 90cm Plug Type: 3.5mmφStereo