ROWIN LN-327 TRILL Optical Tremolo Guitar Effect Pedal NORMAL & HARD Two Modes Mini True Bypass Opto Tremolo Pedal

ROWIN LN-327 TRILL User ManualProduct OverviewThis compact pedal is an opto tremolo effect unit, delivering classic optical tremolo modulation specially crafted for electric guitar players.Operating InstructionsON/OFF LED: Shows whether the tremolo effect is active or the pedal is in bypass mode.DEPTH Knob: Adjust the depth and intensity of the tremolo effect.SPEED Knob: Control the modulation speed of the tremolo.COLOR Knob: Adjust the brightness and tonal character of the sound.Mode Switch: Two working modes: NORMAL and HARD.INPUT Jack: 1/4-inch mono jack for connecting an electric guitar.OUTPUT Jack: 1/4-inch mono jack for signal output to the amplifier.DC Power Jack: 9V DC power supply (center-negative).True Bypass Footswitch: Press the footswitch to turn the effect on and off without tone loss.SpecificationsWorking Current: 9mADimensions: 75×36×26 mmWeight: 133g1. Manufacturer & Business InfoBrand Name: RowinManufacturer Factory: Rowin Audio Equipment Factory, Dongguan City, Guangdong Province, ChinaUS Seller Entity: Sole Proprietor Local Warehouse Operator (Irvine, California)Main Product Line: 300 Series mini phaser/tremolo/swell/fuzz/overdrive/EQ/booster/distortion/noise gate pedals, ABY switchers, DI boxes, LEF multi-effect stompboxes, LFS looper & foot controllersService: Retail sales, small bulk wholesale, OEM private logo customization for global musical instrument retailers worldwide2. Global Compliance CertificationsFCC VOC (US Market): Meets US audio device electromagnetic interference standardsCE Certification (EU & UK): EMC Electromagnetic Compatibility + LVD Low Voltage Safety CertificationRoHS Compliance: Restricts toxic heavy metals inside circuit boards & metal housings3. Product Safety PrecautionsPower SafetyOnly use regulated DC 9V center-negative power adapter with minimum 500mA output. Mismatched voltage or reversed polarity will permanently damage internal analog circuits. Unplug power supply when unused or during thunderstorms to avoid surge damage. This pedal DOES NOT support battery power supply.Mechanical Operation SafetyDo not apply heavy force to footswitch, speed knob, mode toggle and 1/4” audio jacks to prevent internal hardware failure. Unauthorized disassembly of the zinc alloy housing will void the 6-month limited warranty for pre-owned 95% like-new inventory.Cleaning & Storage RulesClean metal housing only with dry soft cloth; alcohol, chemical solvents, detergent or abrasive cleaners are strictly forbidden. Store pedals in cool dry indoor space, avoid long-term direct sunlight, high humidity, violent vibration and heavy physical impact.Usage Environment WarningDo not operate this phaser pedal near water, rainy outdoor environments or high-power magnetic equipment to prevent audio signal distortion and short circuit risk.