U3 Receiver only

• XLR Out: XLR microphone input jack
• Power switch: switches the unit on and off
• Channel status LED: indicates selected channel
• switch: selects Channels 1-6
• USB Port: For charging the battery
• RF Status LED:
• On = Transmitter is on and link is established
• Flashing = Signal connection interference
• Off = Transmitter off or unlinked
• 7 Power status Led: indicates power status.
• Led off = 100% ~ 30%
• Solid red = 29% ~ 11%
• Flickering red = less than 10%
• Antenna

See U3 Complete System Here (Receiver and Transmitter)

Specs

• Dimensions 31 X 29 X 98 mm
• Weight 93g
• Housing Molded Plastic And Cast Metal
• Battery 3.7V Rechargeable Li-lon, 860mA
• Impedance Input 15ohms (1KHz)
• Audio Output Connector  Balanced XLR Female Output
• Maximum Output Level 2.8Vp-p
• Battery Life Up To 5 Hours
• Antenna Impedance 50ohms
• Antenna Type 1/4 Wave Sleeve Dipole, Non-removable
• Number Of Antenna 2