Features:Transmit crystal clear stereo audio signals to any BT receiving device, such as BT earphone, BT speaker or BT music receiver.30pin plug, compatibility: compatible with iPod Touch (3rd, 4th), iPod Nano (1st, 2nd, 3rd, 4th, 5th), iPod Video, iPod Mini, etc.Support profile: A2DP (Advanced Audio Distribution Profile) & ARVCP (Audio/Video Remote Control Profile).Need not setup and any software, very easy to use.No batteries are needed, powered by your device.No confusing buttons to press It can automatically pair. Pair it once and it will always remember your device.Small & discreet; easy to carry around with you.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 insert the adapter into the 30pin connection on your device and pair with the BT device, i.e. BT headphone or BT speaker (The light of the BT Transmitter will be flashing when it is ready to pair).Specifications:Color: BlackBT : BT 2.1Frequency range: 2.42- 2.480GHz (SIM) spectrumRange: Up to 10m / 33ftWorking current: Max. 40MAItem size: 39 * 29 * 8mm / 1.5 * 1.1 * 0.3inItem weight: 6g / 0.2ozPackage size: 1 3.5 * 10.5 * 1.5cm / 5.3 * 4.1 * 0.6inPackage weight: 20g / 0.7ozPackage List:1 * BT Transmitter