... .stereo high quality bluetooth wireless headphone with mic, tf card mp3 player 1. bulit-in bluetooth v2.12. ... iphone, ipad, ipod, samsung ect.Bluetooth version:v2.1+EDR Range of frequency:2400.0-2483.5MHz Operating ... hours Battery:300mAh A2DP,Compatible with various Bluetooth enabled device such as mobilephone,PDAS,laptops,MP3/45 and so on ... 't hesitate to contact us. wireless headphone with memory card