Add Bluetooth Feature to Old Devices---Airfrex Bluetooth transmitter is able to turn your old devices, such as TV, iPod, MP3, MP4, PlayStation PS4, Laptop, Desktop, CD player, Nintendo Switch into Bluetooth enabled. So you can continue using these devices and music players with your Bluetooth headphone or Bluetooth speaker or Bluetooth receiver. However, this is a Bluetooth transmitter and it won't pair with your new version iPod ( new iPod has Bluetooth function). | Ultra Small Size with Great Battery Life---Due to the extremely tiny size and light weight, Airfrex wireless transmitter offers more portability, you don’t even feel its weight when you plug it into your iPod or other music player. However, its battery life lasts up to 9 hours every full charge. | Easy to Pair and No Sound Quality Compromise— Airfrex Bluetooth Sender applies the Qualcomm 4.1 Bluetooth Chipset which offers high quality sound and wider compatibility; it can pair with your Bluetooth headsets or Bluetooth speaker within 20 Seconds. | Works with Any devices that have the AUX (3.5mm) output or RCA (Audio OUTPUT L &R) output, this Bluetooth adapter also supports using when it is charging, you can plug it into the wall charger and have it connected with your Bluetooth Soundbar all the time. | This is a Bluetooth Transmitter (Male) NOT a Bluetooth Receiver (Female), Bluetooth Transmitter only pairs with Bluetooth Headphone or Bluetooth Speaker or Bluetooth Receiver. Bluetooth Transmitter doesn’t pair with your Smartphone or iPad or other tablets. If it fails to connect with your devices, please reset it in this way: during charging, long press the button for about 10 seconds until you see the blue led stops and red led blinks one time, then release the button.