Features:Echo effect pedal with 3 echo modes: digital echo, analog echo and QuadTap echo; QuadTap echo imitates the echoes between the truly changeable valley shapes.To adjust the sense of space and the sense of presence by scattering; power saving, the current is only 50mA.With control knobs to adjust echo tone, dry & wet signal ratio of original sound and echo, delay time and feedback.True bypass footswitch for switching between echo effect and bypass status.Aluminum alloy shell, compact and solid design, durable and portable.Specifications:Working voltage: DC9VChip inner voltage: 1.8VChip outer voltage: 3.3VADC SNR: 90dBDAC SNR: 100dBPower Supply: DC 9V power adapter or 9V battery(both are not included)Item Size: 6.5 * 12.3 * 3.3cm / 2.6 * 4.8 * 1.3inItem Weight: 285g / 10.1ozPackage Size: 14.5 * 9 * 6cm / 5.7 * 3.5 * 2.4inPackage Weight: 400g / 14.1ozNote:Power adapter and battery are 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 Pedal1 * Battery Cable