The Alto Bluetooth Ultimate is a stereo Bluetooth receiver that streams audio wirelessly to mixers or powered loudspeakers. With Bluetooth Ultimate, you can quickly and easily add stereo Bluetooth to any live sound setup. Plug Bluetooth Total into the XLR inputs of a mixer or powered speaker setup, pair your Bluetooth device, and that's it! You can also wirelessly link two Bluetooth Ultimates together to accommodate larger speaker setups. A built-in, rechargeable battery keeps Bluetooth Ultimate running for over 6 hours. Bluetooth Ultimate is a valuable tool that no audio professional should be without.