1) Product Type: Wireless headphone (with microphone) 2) Carrier Frequency: 2.4GHz 3) Receiving Range: 10m, 360 degrees, automatic code 4) Modulation: GFSK, Volume -, Precious song, Next song 5) Frequency response: 20Hz-20KHz 6) SNR: >75dB 7) Distortion: 8) Speaker Size: 30mm 9) Speaker Impedance: 32ohm 10) Headphone Net weight: 140g 11) Other Features: Built-in rechargeable battery / USB sound card
