Mipro AD-58 - 5.8 GHz 4-channel transmitter-antenna combiner for up to 4 Mipro MI-58T/ MI-58TD in-ear transmitters; Frequency band: 5.6 - 5.9 GHz; gain: 10dB; Inputs: 4x TNC; Outputs: 1x TNC; impedance: 50 Ohms; dimensions (WxHxD): 210 x 44 x 101 mm; weight: 0.836 kg