Transmitter Only Input: XLR balanced input jack 2 Spring: Circumferential ground spring providing an accurate connection to the mating shell 3 Lock: secures transmitter 4 Aux/Line mode: Connect to Aux or line out 5 Power switch: switches unit on/off 6 Channel status LED: indicates selected channel 7 Channel switch: selects Channels 1-6 8 USB charging port 9 Power status LED: indicates power status: Led off = 100% ~ 30% Solid red = 29% ~ 11% Flickering red = less than 10% 10 Antenna. BASIC OPERATION U4 TRANSMITTER Specs Dimensions 30 X 28 X 100 mm Weight 90g Housing Molded plastic and cast metal Battery 3.7V Rechargeable Li-ion, 860mAh Imepdance Input 47kΩ (1KHz) Audio Input Connector Balanced XLR Male input Mode Aux mode: -10dBV | Max. +12.2dBu Line mode: +4dBu | Max. +22dBu Battery Life Up to 5 Hours Antennal Impedance 50Ω Antenna Type 1/4 Wave Sleeve Dipole, Non-removable Number of Antenna 1
