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 1/4inch monaural input and output jacks, 9V DC adapter power supply, current draw is 85mA. MP-51 Spring Reverb Mini Single Guitar Effect Pedal True Bypass Guitar Parts & Accessories Effect Type: Spring Reverb Signal Input: 1/4inch Monaural Signal Output: 1/4inch Monaural Power Supply: DC 9V Size: 9.4 * 4 * 3.2cm / 3.7 * 1.6 * 1.3in Weight: 140g / 4.9oz colour: purple Material: Aluminum alloy Note: The DC adapter not included. Package Contents: 1*Effect Pedal Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.