NUX Loop Core Guitar Electric Effect Pedal 6 Hours Recording Time Built-in Drum Patterns Features: Up to 6 Hours recording time. Mono or Stereo recording* (stereo input only via aux-in jack). 99 user memories. 40 built-in drum patterns with TAP tempo. Change the playback tempo of your recorded phrases without changing the key. The recorded phrases can be input into and backup in your PC. Aluminum alloy housing, good durability. Durable jacks and foot switch. Powered by 9V batteries or AC adapter. Specification: Color: Yellow Material of housing: Aluminum alloy Sampling frequency: 44.1K A/D converter: 20bit Input impedance：1M Ohms Output impedance: 33K Ohms Aux In impedance: 10k Ohms Power requirement: 9V DC negative tip(9V battery, ACD-008A adapter)(not included) Product size: 6.3 * 12 * 3.5cm / 2.5 * 4.7 * 1.4in Product weight: 262g / 9.2oz Package size: 9 * 13 * 5.5cm / 3.5 * 5.1 * 2.2in Package weight: 322g / 11.4oz Note: Please use the 9V power adapter whose polarity is positive pole outside and negative pole inside. Otherwise, the product may not work properly. Package List: 1 * Loop core 1 * User manual (English & Chinese)