S1 Pro+ Bose Wireless XLR Mic/Line Transmitter 

Leave the cables in your case and simplify configuration by adding this wireless RF transmitter to your microphone. It's a standard XLR jack, so plug it in and the accessory pairs effortlessly with the S1 Pro+ Wireless PA System. The 2.4 GHz frequency provides a reliable wireless connection of up to 9 meters, so you can interact with your audience effortlessly. And the transmitter features built-in controls for on/off and mute. The accessory plays for up to 4 hours. Store it between performances in the S1 Pro+ itself. It charges on the go, so you're always ready for your next gig.