Preamp, Boost and Overdrive

Features:
Multi-functional guitar effect pedal, supports 2 modes boost and 4 modes overdrive.
With smooth, round, balanced and low-to-medium gain overdrive effect.
With separate controls for bass and tone.
The boost and overdrive channel can be switched independently by the foot switches.
Compact size and full metal housing, portable and durable.
Specifications:
Input: 1/4" monaural Jack
Output: 1/4" monaural Jack
Power Supply: DC 9V AC adapter (center minus plug)(not included)
Item Size: 11.5 * 6.5 * 3.5cm / 4.5 * 2.6 * 1.4in
Item Weight: 265g / 9.3oz
Package Size: 14 * 7.5 * 6.5cm / 5.5 * 3 * 2.6in
Package Weight: 305g / 10.7oz

http://www.moskyaudio.com/product/product-68-270.html