The shure qlxd2 k8b k51 is a wireless handheld transmitter thats built to give you pristine vocal sound. This versatile transmitter syncs to receivers at the touch of a button whether its a place of worship a music venue or a conference hall the qlxd2 k8b can provide full bodied vocals with a consistent frequency response from 20 hz all the way up to 20 khz. This transmitters aa battery life can last up to 9 hours continuously with the option to upgrade to a rechargeable lithium ion battery for an extended 10 hours of continuous use. With a 100 metre operating range with line of sight the qlxd2 k8b provides all the freedom you could want. All of these features make this handheld transmitter ideal for extensive long term use in conferences panels festivals and leading worship events. Providing over 120 db of dynamic range this transmitter can provide all the volume your wireless setup needs. Convenient charging contact ports for easy charging access and the ability to switch out microphone capsules to suit your needs this transmitter is perfect for anyone who wants to free themselves of the hassle of wires.