Armed with 3 brand new algorithms and a true analog dry through signal, the Tender Octave MKII is sure to provide all your octave harmonys needs. A very unique little polyphonic octave pedal with endless tonal possibilities.     Features:  3 brand new algorithms(FAT, TIGHT, SWELL) provide very different tones instantly for you.  SUB, UPPER and DRY knobs for independent volume controls to really get the pedal dialed in.  All analog dry through signal completely retains your guitar's original tones.  Micro size and full metal shell, portable and durable.  With true bypass footswitch and LED indicator light.     Octave Algorithms:  FAT-- big booming sub voice and a soft rounded upper voice.  TIGHT-- tight focused sub voice and a sharp upper voice.  SWELL-- the upper and sub voices have a soft attack and gradually increase in volume whilst the dry signal remains untouched.     Specifications:  Material: Metal;  Signal Input: 1/4″Monaural Jack (impedance: 2.2Meg Ohms);  Signal Output: 1/4″Monaural Jack (impedance: 560 Ohms);  Power Supply: DC 9V adapter (center minus plug)(not included);  Working Current: 150mA;  Item Size: Approx. 3.5 * 9 * 3cm / 1.4 * 3.5 * 1.2in;  Item Weight: Approx. 150g / 5.3oz;  Package Size: 10.5 * 6 * 4.5cm / 4.1 * 2.4 * 1.8in;  Package Weight: 175g / 6.2oz.    Note:  The power adapter is not included.  Please use the power adapter whose polarity is positive pole outside and negative pole inside. Otherwise, the product may not work properly.     Package List:  1 * Effect Pedal;  1 * User Manual (English & Chinese).