Simplify your microphone setup with the Bose Wireless Mic/Line Transmitter. This wireless RF transmitter features a standard XLR connection, eliminating the need for cables. Just plug it in, and it effortlessly pairs with the S1 Pro+ Wireless PA System. It operates on the 2.4 GHz frequency, offers up to 4 hours of playtime, can be conveniently stored and charged in the S1 Pro+, and includes onboard controls for ease of use.