|What's in the box
||Guitar Effect machine Gem box tool with pedal .
The guitar box get 4-in-1 guitar effects pedal, distortion + overdrive + loop + delay.Distortion: a high gain distortion sound,2 modes to choose, with Gain, Tone, Pres and Vol control knobs.Gain--Adjusts the amount of distortion; Pres--Adjusts the high frequency; Vol--Adjusts the output level;Tone--Adjusts the EQ. Clockwise is brighter, counter clockwise is darker.Overdrive: Based on tube overdrive(ts9), with Drive, Tone and Level control knobs.Drive--Adjusts the amount of overdrive; Tone--Adjust the amount of treble in the sound; Level--Adjusts the output volume.FX Loop: The SEND and RETURN jacks allows you to expand your board with other pedals. The FX LOOP point is between the overdrive and delay modules.