The wiRevo D1000V is the highest quality bluetooth adapter available. With features such as 24 bit audio via Bluetooth 2. 0, it will turn any non-Bluetooth GPS or mp3 player into the ultimate wireless audio. Features A Mini-B USB jack for charging (Same style as Garmin and many other phones) Stereo Plug for LINE-IN 3 Buttons for functions A slide switch for Power on/off Red and Blue LEDs indicate status and warning Making/Answer/Hang up an Call Audio Streaming to Stereo Headset (SBC format) Low Battery Indication Function (Red LED flashing ) Battery check function Auto Switching between Audio & Phone Call Support Bluetooth Low Power Mode (Sniff Mode) Bluetooth Hands-free mode for Internet Chat - MSN Messenger, Yahoo Messenger, Skype, etc. Specification Typical Play time: 8hrs Typical Standby time: 150hrs Dimension: 17 X 60. 7 X 17. 9 mm Weight: 14. 85g Bluetooth Specification Bluetooth Spec. V2. 0 Class2 (Max. 4dBm) Supported profiles A2DP(Advanced Audio Distribution Profile), AVRCP (Audio Video Remote Control Profile) HSP (Headset Profile)