Digital Echo    D-2001 200 ms AC & 12V DC Operation   SPECIFICATIONS DELAY TIME 20-200 ms OUTPUT REGULATION 200mV / 1K INPUT CHANNELS 2 × Mic 1.0mV/4.7k POWER SUPPLY AC: 220-240V 50/60Hz DC: 12V (12V Car Battery) DIMENSIONS W285 × H64 × D210 mm WEIGHT 1.75kg