Designed for use with Shure Microflex gooseneck microphones this desktop base transmitter provides uncompromising audio quality and RF performance. Utilizing AES-256 encryption for secure transmission. It offers up to 9 hours of continuous battery life with Shure rechargeable batteries and over 8 hours with AA alkaline batteries. Paired with a ULX-D or QLX-D digital receiver, the the ULXD8 creates a system with low latency, long transmission range, and high channel count, delivering exceptional performance in large meeting venues where live sound reinforcement is required.Long transmission range (up to 300 feet/100 meters) for reliable performance in very large meetings at conference and convention centersConfigurable Mute button (Toggle, Push-to-Mute, Push-to-Talk, disabled) and Mute LED behaviorAdjustable RF power, high-pass filter, and power lock settings