2.4G USB Transmitter Wireless Kopfhörer mit micph

1)USB Transmitter 2)CD sound quality 3)neck-band fashionable design 4)2.4G technology 5)comfortable earpad for long time listening 6)up to 10meters effective range 7)rechargeable battery built-in earcup enduring 8hours 1.Carrier Frequency: 2.4GHz 2.Receiving range: 10 m, 360 degrees, automatic code 3.Modulation: GFSK, Volume + -; Previous song , Next song 4.Frequency response: 20Hz-20KHz 5.SNR: > 75dB 6.Distortion: < 0.1% 7.Speaker Size: 30 mm 8.Speaker impedance: 32 ohms 9.Headphones Net weight: 80 g (excluding wireless signal transmitter) 10.Other features: Built-in rechargeable battery / USB sound card