Behringer Ultra-DI DI100 Professional Battery/Phantom Powered DI-Box Professional and multi-purpose direct injection box for stage and studio applications Provides impedance and signal matching for the direct connection of instruments to mixers and amplifiers Ultra-flat frequency response due to renowned BEHRINGER OT-1 transformer Internal battery automatically shuts off when phantom power is applied Allows direct connection to speaker outputs with up to 3,000 Watts