Behringer Ultra-DI DI100 Battery/Phantom Powered DI Box Features at a Glance: Multi-purpose direct injection box for stage and studio applications Provides impedance and signal matching for direct connection of instruments to mixers and amplifiers Ultra-flat frequency response courtesy of Behringer OT-1 transformer Internal battery automatically shuts off when phantom power is applied Allows direct connection to speaker outputs with up to 3,000W Switchable input attenuation allows input levels of up to +50dB Groundlift switch eliminates typical ground loop problems TRS and gold-plated XLR connectors Ultra-rugged, road-suitable aluminum case Stackable oversized rubber corners High-quality components and exceptionally rugged construction ensure long life and durability Behringer Ultra-DI DI100 DI Box: great-sounding, flexible, and road-tough! Tech Specs Type: DI Channels: 1 Pads: -20dB, -40dB Ground Lift: Yes Inputs: 1 x 1/4", 1 x XLR Outputs: 1 x XLR, 1 x 1/4" (link out) Power Source: 18-48V Phantom Power / 9V battery Height: 5.905" Depth: 5.118" Width: 2.362"