Features: (Compact and portable): Good performance and perfect combination, ten performance effects can be a good acoustic guitar partner. (Preset 3 sets of tones): Users can tone, then consequences, simple and instructed operation. (Multi-functional effects pedal): 8 IR classic groups, 3-segment EQ controller, 2 modulation effects (chorus, tremolo), Tuner/Compressor/Delay/Reverb. USB port and audio) interface: Can be connected to computer to limit, and import third-party IR CAB. (Battery): Solves the problem of long-distance power supply. Go where the cables can't go! 1. Before using the CEO to operate. 2. Size and color can be used due to manual measurements and different lighting conditions. Specification: Application: for acoustic guitar Material: metal Input: Standard 1/4-inch MONO/ TS jack Output: Standard 1/4-inch MONO/ TS jack Sampling rate: 48KHz/24bit Battery capacity: 780mAh element Size: 160 x 60 x mm / 6.30 x 2.36 x 1.18in Item Weight: 265g / 9.36oz Packaging Size: 17.8 x 8.3 x 3.5cm / 7.01 x 3.27 x 1.38in Package weight: 342 g / 12.04 oz Package List: 1 x Effect Pedal 1 x USB charging cable 1 x Storage Cable 1 x User Manual (English)