Handheld Wireless Microphone Transmitter With an interchangeable KSM9 microphone cartridge, the QLXD2/KSM9 Handheld Wireless Microphone Transmitter is ideal for wireless vocals in presentation spaces, music venues, and houses of worship. Works with QLX-D® Digital Wireless Systems Offers up to 9 hours of continuous use with 2 AA alkaline batteries or up to 10 hours of continuous use with Shure lithium-ion rechargeable batteries Includes QLXD2/KSM9, 2 AA batteries, battery contact cover, microphone clip, and user guide,The QLXD2/KSM9 Handheld Wireless Microphone Transmitter works with QLX-D Digital Wireless Systems. Note: When purchasing separate wireless components, please match their frequency bands to ensure proper system operation. Features 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 QLXD2 WIRELESS HH WKSM9 HEAD from Shure is 100% original and is available at Edge Electronics. Speak to our expert for booking a live demonstration. After sales customer service is an integral part of our business ethic and is taken very seriously.