New BTT005 Bluetooth A2DP Stereo Audio Transmitter Adapter With 3.5MM Jack Plug - Bluetooth V 2.1+EDR For audio devices Used for iPod,MP3,MP4,TV,media players New model with CSR BC5 chipset, bluetooth V2.1, backward compatible with V2.0/V1.0 Builti-in Li-on battery, charge from any USB port Function Range: up to 10M,Frequency response: 2.4Ghz - 2.483Ghz, Receiving Sensitivity: -74+/-4DB Dimensions: 45 x 32 x 8 mm, Weight: 14g universal 3.5" plug, suitable for any audio device with 3.5" output socket