Audio-Technica ATW-1501 Wireless System

System 10 Stompbox - Guitar Wireless System, 2.4 GHz 24-bit / 48kHz Digital wireless system, 3 levels of diversity (frequency, time and space), Rackable metal chassis, Up to 10 systems can be used simultaneously, 10mW RF Power, Operating range 30-60m, Internal 3.7 V battery, Up to 7 hours battery life