Specifications: Specifications: 1. Support multi-music format like MP3, WMA 2. Comply with bluetooth 1.2 stardand (bluetooth) 3. Support handset and handsfree profile 4. Transmitted power: Class2 5. Wireless connection range:10M 6. Operation frequency range:2.402GHZ-2.480GHZ 7. Talking time:4hours, readiness time:120Hours 8. External hard drive function: Yes 9. Audio Additional features: Auto-power off 10. Mfr estimated battery life:5hours continuous 11. Battery tape/capacity: Built-in Lithium lon Polymenr/3.7v,150mAh 12. Stylish appearance, unique design, personality development features made it not only a pair of top grade sunglasses but high quality MP3 player which is necessary for outside tour 13. Top grade sunglasses formed the main body, build-in hi quality MP3 player base unit, earplug was setup on the frame directly, stereo-effect when playing music like effect of a home box office 14. A pair of cleverly designed earphone which can be moved fore-and-aftet to adjust its place with 270 degree rotation back-fro, suitable for all people 15. Integrated USB drive 16. Original polarized Polaroid Eyeglasses which can be lift up in under-light environment, was connected with frame by rotating shaft 17. Unique mini 2 in 1 port for USB & recharge, made it smaller and perfect 18. Playing time:4-5 hours, charging time: Ca.2 hours Payment Terms: T/T Certification(s): CE, CCC, FC