Features: 1) Bluetooth version 1.2V 2) Two audio-channel and available range of 10 meters 3) Continuously work for over 10 hours 4) Bluetooth function enables you answer phone more easily 5) Built-in recording device can record the crucial phone numbers or whole contents 6) Support audio and video messages of mobile phone and you can listen to music from computer or mobile phone through two audio channels 7) Top-class plastic and well-designed frame pertain to individual mechanics 8) Wear comfortable and shows personality 9) Top-class sunglasses lens, polaroid lens and optical lens for your choosing 10) Resists ultraviolet radiation and plated film 11) Earphones have flexibility and can be fixed within an angle of 270 degrees at random 12) From 128M to 1G memories for your choice and continuously play music for over 10 hours 13) Repeat downloading music 14) Supports MP1, MP3, WMA, WMV, ASF, WAV and other music formats 15) U-disk without driver above Windows 98 system 16) Ordinary mobile phone without Bluetooth function can also use Bluetooth glasses as long as equipped with Bluetooth emitter (optional)