You can use Bluetooth devices with iPod touch, such as stereo headphones or an Apple Wireless Keyboard. For supported Bluetooth profiles, go to support.apple.com/kb/HT3647.
WARNING: For important information about avoiding hearing loss and avoiding distraction while driving, see Important safety information.
Note: The use of certain accessories with iPod touch may affect wireless performance. Not all iPhone and iPad accessories are fully compatible with iPod touch. Turning on airplane mode may eliminate audio interference between iPod touch and an accessory. Reorienting or relocating iPod touch and the connected accessory may improve wireless performance.
Turn on Bluetooth. Go to Settings > Bluetooth.
Connect to a Bluetooth device. Tap the device in the Devices list, then follow the onscreen instructions to connect to it. See the documentation that came with the device for information about Bluetooth pairing. For information about using an Apple Wireless Keyboard, see Use an Apple Wireless Keyboard.
iPod touch must be within about 30 feet (10 meters) of the Bluetooth device.
Return audio output to iPod touch. Turn off or unpair the device, turn off Bluetooth in Settings > Bluetooth, or use AirPlay 
to switch audio output to iPod touch. See AirPlay. Audio output returns to iPod touch whenever the Bluetooth device is out of range.
Unpair a device. In Settings > Bluetooth, tap 
next to the device, then tap “Forget this Device.” If you don’t see the Devices list, make sure Bluetooth is on.