XVIVE XVIVE U4 Monitor Wireless System Transmitter In-ear (Receiver, Set) XV-U4

Frequency band used: 2.4GHz ISM Worldwide Latency: less than 5ms Number of channels that can be used simultaneously: 6 Maximum transmission distance: Approximately 27m (*Actual transmission distance varies depending on the environment such as radio wave reflection, interference, and absorption.) Driving time: Approximately 5 hours Country of origin: China