headband style bluetooth music game stereo denoise folding portable wired wireless switching large capacity lithium battery headphone

Description

product features 1, support devices: mobile phones, lithographic computers, notebooks, psp and so on 2, support mobile phone calls 3, product accessories: headphones + standard usb charging line +3.5 sound source line 4, frequency range: 2.4g 5, the average sensitivity is 105db (at 1khz+3db), and the frequency response range is 20-20khz 6, high capacity, rechargeable lithium polymer battery 7, battery voltage: 3.7v charge, discharge protection ic 8, talk time: 10 hours, standby time: 250 hours