Instructions:
1. the FC-21 converter into the device's headphone jack, your instrument into the FC-21 converter, and connect the output of this converter to an amplifier or another device that has line input, just like a mixer, keyboard, or synthesizer.
2. You can download software guitar amp & effects system.
3. If you listen to the sound through headphon the output jack will automatically mute.

Specification:
Condition: Brand New
Brand: Flanger
Model: FC-21
Main Color: White
Suitable for: electric guitar, electric bass
Guitar Input: 6.35mm
Headphone Output: 3.5mm stereo
Speaker Output: 6.35mm
Size: Approx. 6.5 x 3 x 1.5cm / 2.5 x 1.1 x 0.5in
Weight: Approx. 38g

Package Included:
1 x Electric Guitar/Bass to Smart Phone Converter