The August MR250 is a Bluetooth transmitter that will enable you to wirelessly play your music from your TV or Home Theater System to your Bluetooth headphones or Bluetooth speakers: Using the standard 3.5mm audio jack cable included to connect to any Audio OUT the MR250 is compatible with almost all TV"s and Sound Systems. No more cables needed to play music! whatever system you are using! You can now easily convert your existing set up to play music wirelessly using a Bluetooth Connection The 2.4 - 2.4835GHZ frequency range will achieve a high quality transmission to fully enjoy listening to music wirelessly.