Features:<br>Opto compressor guitar effect pedal with true bypass.<br>With COMP knob for adjusting the intensity of compression.<br>Can adjust the brightness of tone and the output volume.<br>Supports 2 modes: NORMAL or TREBLE.<br>Super mini size, durable aluminum alloy case.<br>With LED light for showing the working status(effect or bypass).<br><br>Specifications:<br>Brand: ammoon<br>Model: AP-18<br>Material: Aluminum Alloy<br>Signal Input: 1/4&Prime;Monaural Jack<br>Signal Output: 1/4&Prime;Monaural Jack<br>Working Current: 14mA<br>Power Supply: DC 9V <br>Item Size: 7.5 * 3.5 * 2.5cm / 3 * 1.4 * 1in<br>Item Weight: 148g / 5.2oz<br>Package Size: 10.5 * 6.5 * 4.5cm / 4.1 * 2.6 * 1.8in<br>Package Weight: 206g / 7.3oz<br><br>Package List:<br>1 * Effect Pedal<br>1 * User Manual (English &amp; Chinese)