Check the listing for details. MXR M233 Micro Amp+ Boost Effects Pedal. Condition: New. Listed at 139.99 USD. MXR M233 Micro Amp+ Boost Effects Pedal Description For more than 20 years, the MXR Micro Amp has been a staple among the worlds top artists because of its ability to boost and sweeten up your guitar or bass tone and drive the front of your amp. The Micro Amp+ builds on that classic pedal with EQ controls and other upgrades that take this powerful boost box to the next level. With its Gain knob, the Micro Amp+ allows you to dial up just as much gain as the original—up to +26dB—but with added EQ controls, you can now finely sculpt your boosted signal. For the classic Micro Amp sound, set the Bass and Treble controls to noon. Additionally, the Micro Amp+ now comes equipped with low-noise op amps—so you dont get any extra noise at super high levels—and true bypass switching. With the sturdy housing and durable components that MXR is known for, this pedal is ready for the road. Features Always be at the right volume for solos and rhythm partsSweeten your tone by driving the front end of your tube amp just rightSpecially-tuned 2-band EQ lets you shape your signature soundLow-noise op-amps keep your signal clean, even with boost crankedTrue-bypass switching Attributes Color: WhiteTechnical Specifications Effects: BoostProcessing Type: AnalogInputs: 1 x 1/4"Outputs: 1 x 1/4"Features: Battery-PoweredPower Source: 9V DC power supply (sold separately)Dimensions: 2.12" H x 2.62" W x 4.37" DWeight: .54 lbsBatteries: 1 x 9VPower Usage: 6.5mAEQ: 2-Band EQ