# KTRL Patch User Guide

[KTRL Patch User Guide](https://www.ktrlpatch.com/user-guide)

## INSTRUCTIONS

### CLEAN AND PREPARE

Check that the packaging is intact and the patch is undamaged. Clean and dry the application area; do not apply to abnormal skin. Trim excess hair if necessary.

### APPLY THE PATCH

Position the patch with the power button facing the scrotum and the rear edge about 2 cm from the anus. 3–5 minutes before intercourse, remove the release liner, apply the patch, and press firmly for 10 seconds.

### TURN ON

Press and hold the power button for at least 1 second to turn on. Use for at most 30 minutes of cumulative powered-on time in one session. Time switched off does not count; switching on again continues the same cumulative limit.

### TURN OFF AND REMOVE

Press and hold the power button for at least 3 seconds to switch off, then gently remove the patch. Switch off before removing or repositioning the patch within the same session. You may gently bend it to fit the skin, but must not fold it or bend it sharply. Do not reuse it across sessions.

## CAUTIONS

### DO NOT USE

Under 18 or over 60 years of age.

Wounds, damage, ulcers, redness, infection, inflammation or other skin abnormalities at the application site.

Abnormal sensitivity, intolerance to stimulation or other abnormal reactions at the application site.

Known sensitivity or allergy to contact materials.

A history of major cardiovascular disease or other relevant serious health risks.

Use of implanted, interventional or other electronic stimulation devices.

Peripheral nerve abnormalities or abnormal sensation.

Visible product damage, a cracked casing, abnormal heat or an abnormal product condition.

Bathing, swimming, sauna use or other wet environments.

Driving, operating machinery or sleeping.

Treatment or medicines that may affect skin sensation, local reactions or judgement about safe use.

Surgery, treatment or ongoing recovery at the application site.

### STOP IF UNCOMFORTABLE

Stop use immediately and remove the patch if you experience pain, stinging, burning, redness, itching or other noticeable discomfort. If symptoms persist, do not resume use and consult a professional. Stop use if the product malfunctions and contact support. Keep away from children and pets.

### 30 MIN CUMULATIVE MAX

Use for at most 30 minutes of cumulative powered-on time in one session. Time switched off does not count; switching on again continues the same cumulative limit.

### SINGLE USE

Switch off before removing or repositioning the patch within the same session. You may gently bend it to fit the skin, but must not fold it or bend it sharply. Do not reuse it across sessions.

### CUSTOMER SERVICE

For help, email support@ktrlpatch.com or info@ktrlpatch.com or call +852 5269 4072.

## Model and specifications

KTRL is the brand; KTRL3F is the trademark; WDC201 is the model; A-KTRL-001 is the catalogue item number.

KTRL™ Portable Smart Patch is a non-medical consumer electronic product for men aged 18–60, for external skin-surface contact only. Contact materials: conductive gel and TPE insulating foam. Dimensions: 46 × 40 × 6 mm; weight: 9 g. It uses 2 non-rechargeable LR927 batteries, rated at 1.5 V each. Each single-patch pack contains one patch, one quick guide and one instruction manual.

Store dry and clean at room temperature, away from heat, humidity, direct sunlight, dust and liquids. Do not use or store in oxygen-rich environments. Do not wash, soak or clean for reuse. Stop use for abnormal heat, swelling, leakage or damage. Do not dismantle, puncture, crush or burn the product.

Model WDC201 · Based on the English 3c instructions, updated 22 May 2026, and the confirmed website instructions. Approval and effective-date documentation remains pending.