Ready-record function. Ready-record function sensitivity switch. 3 loops can be stored, the total recording time is up to 11 minutes. The recording time of single loop is up to 5 minutes. 3 gear speed changer offers options. Each loop support unlimited overdub. Each loop can undo and redo last layer audio unlimited times. Support using USB cable to export/import WAV audio files from computer. One footswitch to control all LOOP functions: record, play, stop, overdub, undo, redo, delete, etc. LOOP knob: Adjust the playback volume of LOOP. Ready-record function: Click the ready button to open the "Ready-record" function, the current LOOP indicator will be flashing, and the LOOP recording will start automatically after playing your instrument (Click on the Ready-record switch, hold down the sensitivity of the Ready-record Switching mode). Ready-record indicator: Blinking blue indicates that the Ready-record function is enabled. Loop status indicator: Red is recording, green is playing,and green blinks temporarily Cut. LOOP footswitch: Controls recording, playback, stop, delete, overlay, undo/restore and other functions. Recording storage function: Three recorded recordings can be stored. Variable speed function: There are 3 speed options when the recording is complete. Power interface: please use 9V DC adapter (negative inside and positive outside). Input interface: 1/4Inch MONO audio input interface. Output interface:1/4Inch MONO audio output interface. TYPE-C jack: Support power supply, suggest to use 5V 1A adapter (USB interface can also be used to connect the computer for file transfer, but after connecting the computer, the effect will be identified as a storage device, at this time only for computer transmission, other functions are temporarily invalid.) Colour:As Shown Material:Metal Package Contents: 1 * Guitar Effect Device Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of t