The August MR220 is a Bluetooth receiver that will enable you to wirelessly play your music from your Bluetooth device to any speaker system:Using the standard 3.5mm audio jack cable included to connect to any Audio IN: from home speakers to portable ones, and even car stereo.No more cables needed to play music whatever system you are using!With the August MR220 you will be able to play and control your music wirelessly using the native music player from the Bluetooth device you are using. The 2.402 - 2.480GHz frequency range will achieve a high quality transmission to fully enjoy listening to music wirelessly.