QLXD2/B58=-H51 handheld transmitter, frequency band: 534-598 MHz ( H51 )Featuring transparent 24-bit digital audio quality and incredibly efficient RF spectrum usage, the QLXD2 handheld transmitter is ideal for wireless vocals in presentation spaces, music venues, and houses of worship. Easy to use, the QLXD2 quickly syncs with a wireless receiver over IR at the push of a button and maintains clear, uninterrupted signal over its entire 100 m (330 ft.) range. All metal construction ensures durability, and a wide selection of compatible microphone choices offer legendary Shure sound signatures.FEATURES20 Hz to 20 kHz frequency range with flat response (actual response is microphone dependent)Interchangeable Shure microphone capsules, including the legendary SM58®AES 256-bit encryption for secure transmissionOver 120 dB of dynamic range – no transmitter gain adjustment needed1, 10 mW selectable RF output powerUp to 9 hours continuous use with 2 x AA alkaline batteriesOptional Shure SB900 lithium ion rechargeable battery provides up to 10 hours of continuous use and reports remaining runtime in hours and minutesExternal charging contacts for docked chargingBacklit LCD with easy to navigate menu and controlsSelectable display mode showing group/channel, frequency, or battery runtime100 meter (330 ft.) line-of-sight operating rangeRugged metal constructionFrequency and power lockout
