Wireless Headphones Bluetooth Stereo Foldable

New Portable Wireless Headphones Bluetooth Stereo Foldable Headset Audio Mp3 Adjustable Earphones with Mic for Music Product Features: 1.Enjoy stereo music wirelessly 2.Unique foldable design make it portable 3.Remote hands free two-way chat 4.HI-FI, CD sound quality 5.Remote control to add further mobility 6.High-sensitive, multi -directional speaker for virtual surround sound  7.Supporting device: cellphone with Bluetooth function, iphone, Notebook, ipad etc 8.Best Choice for listening music, watching movie, chatting online etc. 9.With SD card slot,a small SD card is enough for enjou music any time any where. Version V4.0 Frequency 2.40GHz-2.48GHz Power 4 dBm, class 2 Effective range 10M Sensitivity -84dBm / 0.1% BER talking speed 3M bps (asynchronous) 433.0 Kbps (synchronous) Frequency response 20 Hz - 20 KHz S/N rate 70 dB Distortion 0.10% Speaker size 40mm  support A2DP 1.2, AVRCP 1.0, HSP, HSF 1.5 Voltage 3.7VDC (built-in 400MAH rechargeable battery)