Shure SLXD24D/SM58 Dual Channel Digital Wireless Microphone System - Includes Two SLXD2 Handheld Transmitters with SM58 Vocal Mic Capsules, SLXD4D Rack Mount Receiver | G58 Band (SLXD24D/SM58-G58)The SLXD24D 58 Digital Wireless System delivers transparent, 24 bit digital audio and rock solid RF performance for a wide range of applications, from day long presentations to nighttime performances. Operate up to 32 compatible systems per 44 MHz band, with easy setup and optional rechargeability accessories for wireless excellence, wherever required. Ships with SLXD4D dual channel receiver, 2 SLXD2 handheld transmitters with legendary SM58 cardioid