... the Bluetooth audioadpter into any devices with 3.5mm audio port, such as PC, PSP, iPod, PAD,MP3, MP4, MPS, PMP, ... 3 seconds until thered LED flash quickly for 3 times.4. Pairing --- While the bluetooth audioadapter is power off, press ... . Select the Bluetooth audio adapter fromthe list and enter the pass code "0000"You can enjoy the wireless moment Now. Wireless Bluetooth Audio Dongle Transmitter