Ernie Ball EB6201, Volume Pedal, Combines active 2-in-1 volume pedal and chromatic tuner, Control via touchscreen display, Discrete buffer circuit, Aluminium housing, Strong and durable PVC coated Kevlar cord, Colour: Silver, Current consumption: 150 mA, Power supply with a 9-18 V DC power adapter (not included)@+*Connections:*@+@+, Input: 6.3 mm jack, Output: 6.3 mm jack, Return: 6.3 mm jack, Send: 6.3 mm jack, Power supply: coaxial connector 5.5 x 2.1 mm (negative polarity inside)@+*Note:* Battery operation is not supported.