Features: Transmits crystal clear stereo sound to any BT-enabled receiving device, such as BT headphones, BT speakers, or BT music receivers. Compatibility with 30-pin connector: Compatible with iPod Touch (3rd, 4th), iPod Nano (1st, 2nd, 3rd, 4th, 5th), iPod Video, iPod Mini, etc. Supported Profiles: A2DP (Advanced Audio Distribution Profile) & AVRCP (Audio/Video Remote Control Profile). No installation or software required, very easy to use. No batteries needed, it's powered by your device. No confusing buttons to press! It can pair automatically. Pair it once and it will always remember your device. Small & discreet; easy to carry around. Note: It is not compatible with iPod Nano 6, iPod Mini 4GB model M9804X (version 1.4.1), iPod Classic, iPod Touch 2nd, iPod Touch 1st, iPod Classic 30GB. How to Use: Simply plug the adapter into your device's 30-pin port and pair it with your BT device, such as BT headphones or BT speakers (the BT transmitter's light will flash when it's ready to pair). Specifications: Color: Black BT: BT 2.1 Frequency Range: 2.42-2.480 GHz (ISM Spectrum) Range: Up to 10m / 33ft Working Current: Max 40MA Item Size: 39*29*8mm/1.5*1.1*0.3in Item Weight: 6g/0.2oz Package Size: 13.5 * 10.5 * 1.5cm / 5.3 * 4.1 * 0.6in Package Weight: 20g / 0.7oz Packing List: 1 * BT Transmitter.