QLX-D reliably operates more channels on-air than any other wireless system in its class. Ethernet connection provides networked channel scanning across multiple receivers and Shure Wireless Workbench 6 control software compatibility for advanced frequency coordination. Compatible with the Shure SB900B lithium-ion battery, QLX-D offers rechargeable power options that provide dramatic long-term cost savings and extended transmitter battery life over alkaline batteries, with battery metering that reports remaining runtime in hours and minutes.Featuring transparent 24-bit digital audio quality and incredibly efficient RF spectrum usage, the QLXD2/N8S/B handheld wireless transmitter includes a Nexadyne 8/S supercardioid dynamic capsule (black finish). All metal construction ensures durability makes this 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.QLXD2 Handheld Main Features:20 Hz to 20 kHz frequency range with flat response (actual response is microphone dependent)Interchangeable Shure microphone capsules, including the legendary SM58AES 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 SB900B 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 lockoutRPW204 Specifications:Type: Dynamic (moving coil)Polar Pattern: SupercardioidFrequency Response: 50 to 20.000 HzOutput Impedance: 450 Sensitivity (Open circuit voltage @1 kHz, typical): 51.0 dBV/Pa (2.81 mV), 1 Pa = 94 dB SPLPolarity: Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3Weight: 294 gConnector: Three-pin professional audio (XLR), maleHousing: Die-cast aluminum with black paintQLXD2 Specifications:Mic Offset Range: 0 to 21 dB (in 3 dB steps)Battery Type: Shure SB900A Rechargeable Li-Ion or AA batteries 1.5 )Battery Runtime (@ 10 mW)-Shure SB900A: up to 10 hours-Alkaline: up to 9 hoursDimensions: 256 mm 51 mm (10.1 in. 2.0 in.) L Dia.Weight: 347 g (12.2 oz.), without batteriesHousing: Machined aluminumAudio InputConfiguration: UnbalancedMaximum Input Level (1 kHz at 1% THD): 145 dB SPL (SM58), typical. NOTE: Dependent on microphone typeRF OutputAntenna Type: Integrated Single Band HelicalOccupied Bandwidth: < 200 kHzModulation Type: Shure proprietary digitalPower: 1 mW or 10 mW