... .5V audio input 5.OEM welcome. Product: Dynamic Round Headphone with Sponge Cover Stereo Headset, High-pitched Bright Bass SoundDistance ... with no interference) Battery working time:About 8-10 hours Headphone remote control :volume+,volume-,play/pause,last song,next song ... calbe 1M charge calbe Colour box with blister Dynamic Round Headphone with Sponge Cover Stereo Headset, High-pitched Bright Bass ...