Features: Boasting a super small size with low noise, and a near bottomless depth of spring reverb sound. Mix pot to balance dry/wet degree. Dwell pot for adjusting bit reduction rate. True bypass switch achieves zero-loss of tone, with a LED indicator to state working condition. Single 1/4″monaural input and output jacks, 9V DC adapter power supply, current draw is 85mA. Specifications: Brand: MOSKY Modal: MP-51 Effect Type: Spring Reverb Material: Metal Signal Input: 1/4″Monaural Jack Signal Output: 1/4″Monaural Jack Power Supply: DC 9V Item Size: 9.4 * 4 * 3.2cm / 3.7 * 1.6 * 1.3in Item Weight: 140g / 4.9oz Package Size: 11 * 6 * 6cm / 4.3 * 2.4 * 2.4in Package Weight: 177g / 6.3oz Package List: 1 * Effect Pedal Note: The DC adapter not included. Please use the 9V power adapter whose polarity is positive pole outside and negative pole inside. Otherwise, the product may not work properly.