LD Systems U308 IEM HP, UHF In-Ear Monitoring System, Frequency bands: 823-832 MHz and 863-865 MHz, Frequency range: 50 - 16,000 Hz, 12 Selectable channels, Up to 6 systems can be used simultaneously, Transmission power: 10 mW, Receiver has a runtime of 10 h with 2x AA batteries, Receiver in a sturdy metal housing, Stereo- or mono mode, Unlimited number of bodypacks can be set to the same transmission frequency, Channel and RF reception are displayed on bodypack, 2x Combo jacks serve as balanced XLR as well as unbalanced 6.35 mm jack inputs, Mini jack socket on the receiver, Weight (bodypack): 85 g, Includes rack mounting kits@+*Earphones:*@+@+, Frequency range: 30 - 20,000 Hz, Impedance: 16 Ohm, Cable: 1.5 m, Weight: 88 g