WL30XLR wireless mic system

plug-and-play wireless system for a standard dynamic XLR microphone high audio performance with low latency BOSS wireless technology frequency range: 20Hz - 20kHz latency: 2.3ms; dynamic range: 110dBwireless carrier frequency: 2.4GHz easy setup with visual support in just two steps up to 11 hours of runtime with regular AA alkaline batteries; transmission range: up to 70 m eters (line-of-sight transmission) reliable wireless performance with 14-channel scan battery LED to check remaining battery life light and compact transmitter for comfortable handheld performance receiver connects to an XLR mic input on a mixer, amplifier, audio interface, etc.channel lock function dimensions per unit (W x H x D): 23 x 99 x 27mm weight per unit: 90g; contains: WL-30XLR transmitter and receiver (microphone not included), user manual  batteries