MSRP $39.99-1. High-quality Sound Transmission: 24bit audio resolution, sampling frequency of 48K, providing stable and reliable wireless transmission. The delay is less than 6ms, no delay or no signal loss. 2. Designed for Dynamic Microphones: The transmitter and receiver are suitable for any dynamic microphone, mixer, PA system. Provide stable and reliable . 3. High-quality Sound Transmission: Wireless microphone system, the delay is less than 5 milliseconds, the delay is less, and the signal loss is less. High-quality audio provides stable sampling rate stereo uncompressed digital transmission. 4. Rechargeable Battery & Power Indicator: The transmitter and receiver can be charged simultaneously through a dual-port USB cable. More than 5 hours playtime. You can know the battery level and related channel indicators when you turn it on. 5. Multiple Uses: Compatible with mixers, recorders, speakers, sound reinforcement systems, power amplifiers, etc. Provide stable and reliable wireless transmission