Shure SLX24/SM86 Handheld Wireless System, G4 SLX Wireless Systems are powerful wireless tools that can be set up quickly and used confidently by installers and working bands Features include auto frequency scan with transmitter setup, exceptional wireless clarity, and Shure patented Audio Reference Commanding Includes SLX2/SM86, SLX4 receiver, microphone clip, rack mount kit, two 1/4 wave antennas, power supply, 2 AA batteries, protective bumpers with 8 screws, vinyl bag, and user guide