The Galaxy Audio AS-4400RM4 is a compact wireless receiver bodypack, designed as an additional or replacement unit for the Galaxy AS-4400M4 in-ear monitor system. You can operate up to four of these receivers with a single AS-4400 transmitter (sold separately) to create a powerful, rock-solid IEM setup. The receiver operates in the 534–552MHz UHF frequency range and features an onboard level control along with an LCD display for easy monitoring. Dual 1/8" outputs provide a connection for earbuds as well as a line output option. With an impressive 8-hour battery life from just two AA batteries (not included), you can perform extended sets without interruption—no more worrying about running out of juice mid-show. The 160' operating range gives you the freedom to move about the stage as you please. Whether adding to an existing system or building a new one, the AS-4400RM4 receiver offers reliable wireless monitoring in a compact and portable package.