One Control 3-Channel Loop Switcher, Loop Switcher for Effects Pedals, 3-Channel true bypass loop switcher for effects pedals, The footswitches provide control over three independent loops and a separate tuner output, 4 DC barrel connector outputs (2.1 x 5.5 mm) for looping through the power supply, True bypass, 4 Foot switches (Loop 1, Loop 2, Loop 3, Tuner Out / Mute), Status LEDs, 6.3 mm mono jack inputs / outputs, Power supply via optional 9V DC power supply (2.1 x 5.5 mm barrel connector, polarity (-) inside - not included), Passive operation without power supply possible (status LEDs and DC barrel connector outputs then without function), Power consumption max. 5 mA, Metal housing, Dimensions (L x W x H): 41 x 244 x 46 mm, Weight: 320 g@+*Note:* Battery operation not supported@+@+*Note:* Register your product at www.w-distribution.de/Warranty and extend the guarantee to 4 years.