Feature 1BLUETOOTH VERSION 2.1: Wireless bluetooth sound dongle adapter uses bluetooth version 2.1, no software installation, plug and play. 2EASY TO USE: 30 pin bluetooth adapter transmits TV sound to your home combo speakers via bluetooth without the hassle of wiring. 330 PIN BLUETOOTH TRANSMITTER: 30 pin bluetooth adapter can transmit to bluetooth headphones and enjoy excellent sound alone at night. 410M TRANSMITTING DISTANCE: 30 pin wireless bluetooth adapter has an operating range of 10m and a frequency range of 2.422.480GHz. enjoy wireless music. 5APPLICABLE: 30 pin bluetooth transmitter is suitable for home, classroom presentations, conference presentations and other occasion.Item Type: 30 Pin Bluetooth Adapter Material: ABSBluetooth Version: Bluetooth 2.1Frequency Range: 2.42-2.480GHzOperating Range: 10m/32.8ft Package List:1 x 30 Pin Bluetooth Adapter1 x Instruction BookNoteNot compatible with for iPod nano 6, for iPod Mini 4GB model M9804X (version 1.4.1), for iPod classic, for iPod Touch 2, for iPod Touch 1, for iPod classic 30GB. and it does not support for Ipod made before 2007.