This products works on the H57 Frequency Band.

The SLXD24D/58 Wireless System delivers transparent, 24-bit digital audio and rock-solid RF performance for a wide range of applications, from day-long presentations to night time 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 and two SLXD2/B58 handheld transmitters with antenna and rackmount accessories and 4 AA batteries.

Features

• Wireless System uses RF scan and IR sync and be ready to go at the push of a button
• Or follow the guided frequency setup tool embedded in every SLX-D receiver
• First-class selection of handheld, lavalier and headset microphones for
• Up to 32 compatible systems per 44 Mhz band
• Install-friendly, with a clean profile—rack hardware included
• Ethernet control for group scans, firmware updates and local setup and control
• Beta 58A has frequency response tailored for vocals, with brightened midrange and bass rolloff to control proximity effect
• Uniform supercardioid pattern for high gain before feedback and superior rejection of off-axis sound
• Neodymium magnet for high signal-to-noise output Hardened steel mesh grille that resists wear and abuse
• Advanced pneumatic shock mount system that minimises transmission of mechanical noise and vibration
• Minimally effected by varying load impedance
• Legendary Shure quality and reliability