Shure QLXD2 Wireless HH SM58 K51(606-670 MHz)

• 24-Bit digital audio quality

• Incredibly efficient RF spectrum usage

• Quick syncing with a wireless receiver over IR at the push of a button

• Clear, uninterrupted signal over the entire operating range

• AES 256-bit encryption for secure transmission

• Over 120 dB of dynamic range: no transmitter gain adjustment needed

• 1, 10 mW selectable RF output power

• Optional Shure SB900 lithium ion rechargeable battery reports remaining runtime in hours and minutes

• External charging contacts for docked charging

• Backlit LCD with easy to navigate menu and controls

• Selectable display mode showing group/channel, frequency, or battery runtime

• Rugged metal construction

• Frequency and power lockout