Check the listing for details. Alto Professional Bluetooth Ultimate XLR Stereo Bluetooth Audio Receiver Adapter. Color: Black, Condition: New. Listed at 99.00 USD. 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 Ultimate 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. This product can wirelessly pair to another Bluetooth Ultimate, or the Alto Professional Bluetooth Total 2, both sold separately. Original Bluetooth Total is not supported. Additional XLR cable not included. Alto Professional Bluetooth Ultimate Stereo Adapter Features:Add Bluetooth to any speaker or mixer.Link two together for cable-free stereo playback.Dual XLR outputs for wired stereo playback.100+ft range.XLR output on front and back.USB micro rechargeable battery (6+ hours.) Each Bluetooth Ultimate Retail Box Includes:(1) Alto Professional Bluetooth Ultimate Stereo Bluetooth Adapter (1) Micro-USB Charging Cable (1) User Guide