Consisting of SL Headmic 1, SL Rackreceiver DW-3 EU and power supply, SL bodypack DW-3 EU Up to 20 compatible channels under ideal conditions Automatic Frequency Management by Wireless Link Protection Technology 7-band Equalizer Battery life up to 15 hours Sennheiser condenser capsule 9.5" Metal receiver with detachable antennas Frequency range: 1880 - 1900 MHz, no registration worldwide, royalty-free operation Incl. GA 4 Rack mount and BA 30 Suitable accessories:. CHG 2 EU charger - Art. 357292 (not included)