Shure BLX288E/SM58-H8E - wireless system with receiver and two SM58 microphones

6.35 mm (1⁄4-inch) output: 2 Channels quantity: 12 channels XLR out: 2 Operating frequency type: Ultra High Frequency (UHF) Radio Frequency (RF) range: 518 - 542 MHz Package contents: Power supply Number of batteries: 2 Battery type: AA Microphone type: Handheld microphone Wireless range: 100 m Battery lifetime: 14 h