They might not be considered the stars of the show, but line selectors and channel switchers are definitely among the most essential workhorses of a good pedalboard. The LEF-330 ABY selector from budget guitar effects pedal maker Rowin is a versatile selector pedal, letting your signal flow from A or B to Y or vice versa. You can connect two instruments—an electric and an acoustic guitar, for example—to one amp or use the LEF-330 ABY to throw your instrument’s signal to two separate amps for a true stereo attack.

Rowin

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ABY Channel Switch

mini power

The Rowin LTL-03 METAL is a great pedal, especially if you want more 80s or 90s Metal sounds!

The pedal makes a thicker and clearer voice than the HISS.

If you like the dirty and crazy Metal sounds, the pedal can make your earphone become the gate leading to the Hell, only the Metal sounds is real on the way!

Demo by サウンドハウス

Demo by   f4llingstars9

Review by reddit /guitarpedals

LTL-03 METAL

Analog circuit Delay pedal, has a warm, clean and smooth voice tone delay

Delay Time: 25ms - 600 ms

Metal shell

Very small and exquisite

True bypass

Analog Vintage Delay Guitar Effect Pedal

Rowin Trelicopter is a Classic optical tremolo with huge range of speeds and depths BIAS knob brings various color of the tremolo effect soundFeatures and Specifications Rowin micro effect pedals pack an incredibly BIG sound into a very small package.
Very small and exquisite

LEF-327 Trelicopter