1. Introduction
The Weicaite JRW-600 is an intelligent rehabilitation treatment device offering four distinct therapy modes: Transcutaneous Electrical Nerve Stimulation (TENS), Electrical Muscle Stimulation (EMS), Interferential Current (IF), and Russian Stimulation (RUSS). This versatile unit is designed for pain relief, muscle stimulation, and rehabilitation purposes. It features a high-tech design with an extra-large LCD display for ease of use and offers a total of 60 adjustable programs.

This manual provides detailed instructions for the safe and effective operation, maintenance, and troubleshooting of your JRW-600 device. Please read it thoroughly before first use.
2. Safety Information
WARNING: Consult with a healthcare professional before using this device, especially if you have pre-existing medical conditions, are pregnant, have a pacemaker, or any other implanted electronic device. Do not use on open wounds, irritated skin, or near sensitive areas like the eyes or heart. Keep out of reach of children. This device is not intended to diagnose, treat, cure, or prevent any disease.
- Do not immerse the device in water or other liquids.
- Do not use while driving or operating heavy machinery.
- Do not use if you have epilepsy or a history of seizures.
- Discontinue use if you experience any discomfort or adverse reactions.
- Only use accessories provided or approved by the manufacturer.
3. Package Contents
Carefully unpack your JRW-600 device and verify that all items listed below are present and in good condition:
- 1 x Electric Stimulator Main Unit (JRW-600)
- 1 x 1.8-meter USB Cable
- 4 x 5x5cm Self-Adhesive Electrodes
- 2 x 1.5-meter Lead Wires
- 1 x Foam-Padded Hard Carry Case
- 1 x Belt Clip
- 1 x Quick Start Guide & User Manual

4. Device Overview
The JRW-600 features an intuitive interface with an extra-large LCD display and clearly labeled buttons for easy operation.

Controls and Display:
- Power Button (⑂): Turns the device on/off.
- Mode Button (M): Cycles through therapy modes (TENS, EMS, IF, RUSS).
- Program Button (P): Selects preset programs within the chosen mode.
- Set Button (S): Used to adjust specific parameters in adjustable programs.
- Time Button (T): Adjusts the treatment duration.
- Channel 1 Intensity (+/- CH1): Increases or decreases intensity for Channel 1.
- Channel 2 Intensity (+/- CH2): Increases or decreases intensity for Channel 2.
- LCD Display: Shows current mode, program number, remaining time, frequency, pulse width, and intensity levels for both channels.

5. Setup
- Charge the Device: Before first use, ensure the device is fully charged using the provided USB cable.
- Connect Lead Wires: Insert the lead wires into the output ports at the top of the JRW-600 unit. The device has two independent channels (CH1 and CH2).
- Attach Electrodes: Connect the self-adhesive electrodes to the pins on the lead wires. Ensure a secure connection.
- Prepare Skin: Clean and dry the skin area where electrodes will be placed. Remove any lotions, oils, or hair that may interfere with adhesion.
- Apply Electrodes: Firmly press the electrodes onto the skin. Refer to the electrode placement guide for recommended positions for various body parts.

6. Operating Instructions
The JRW-600 offers 60 adjustable programs across its four therapy modes. Follow these steps to operate the device:
Basic Operation:
- Power On: Press and hold the Power (⑂) button until the display lights up.
- Select Mode: Press the 'M' (Mode) button to cycle through TENS, EMS, IF, and RUSS modes. The selected mode will be displayed.
- Select Program: Press the 'P' (Program) button to choose from the available programs within the selected mode. The program number (e.g., P01, P02) will be shown.
- Adjust Time: Press the 'T' (Time) button. Use the '+' or '-' buttons for CH1 or CH2 to adjust the treatment duration from 5 to 90 minutes (1-minute increments).
- Adjust Intensity: Once a program is selected and time is set, slowly increase the intensity using the '+' buttons for CH1 and CH2 until you feel a comfortable, yet effective, sensation. Do not increase to an uncomfortable level.
- Power Off: Press and hold the Power (⑂) button until the display turns off.
Adjustable Programs:
For programs that allow parameter adjustment (e.g., TENS: 2 adjustable, EMS: 2 adjustable, IF: 2 adjustable, RUSS: 2 adjustable), follow these steps:
- Select an adjustable program (e.g., P24 for TENS).
- Press the 'S' (Set) button to cycle through adjustable parameters such as pulse width, frequency, working time, or cycle time.
- Use the '+' or '-' buttons for CH1 or CH2 to modify the selected parameter.
- Press 'S' again to confirm the setting or move to the next parameter.
Video: Demonstration of JRW-600 device operation, including mode and program selection, and intensity adjustment.
7. Custom Programs Details
The JRW-600 offers a range of customizable parameters for advanced users or specific therapeutic needs.
Interferential Current (IF)
- PU1 Mode:
- Channel 1 Fundamental Frequency: 4000 Hz (fixed)
- Channel 2 Selectable Frequency: 4001 to 4150 Hz
- Interference Frequency: 1 to 150 Hz
- PU2 Mode:
- Channel 1 Fundamental Frequency: 2500 Hz (fixed)
- Channel 2 Selectable Frequency: 2501 to 2650 Hz
- Interference Frequency: 1 to 150 Hz
- Adjustable Cycle Time: 5 to 60 seconds.
Russian Stimulation (RUSS)
- PU1 Mode:
- Carrier Frequency: 2500Hz (fixed)
- Adjustable Frequency: 1Hz to 100Hz (1 Hz/step)
- PU2 Mode:
- Carrier Frequency: 2000Hz (fixed)
- Adjustable Frequency: 1Hz to 100Hz (1 Hz/step)
- Adjustable Cycle Time: 5 to 60 seconds.
TENS
- Adjustable Frequency: 1 Hz - 800 Hz (1 Hz/step).
- Adjustable Pulse Width: 50 µs - 300 µs (1 µs/step).
EMS
- Adjustable Frequency: 1 Hz - 800 Hz (1 Hz/step).
- Adjustable Pulse Width: 50 µs - 300 µs (1 µs/step).
- Ramp Up Time: Adjustable, from 1 to 9 seconds.
- Contraction Time: Adjustable, from 1 to 60 seconds.
- Ramp Down Time: Adjustable, from 1 to 9 seconds.
- Relaxation (OFF) Time: Adjustable, from 1 to 60 seconds.
8. Product Usage and Therapeutic Effects
TENS Function (Transcutaneous Electrical Nerve Stimulation)
TENS therapy is primarily used for pain relief. It works by sending small electrical impulses through electrodes placed on the skin to block pain signals from reaching the brain and stimulate the body's production of natural pain-relieving endorphins.
- Relieves arthritis pain and nerve pain.
- Aids in rehabilitation and treatment of post-operative pain.
- Alleviates joint pain and chronic intractable pain.
- Provides pain relief for areas such as the back, knees, shoulders, ankles, wrists, and elbows.

EMS Function (Electrical Muscle Stimulation)
EMS is used to stimulate muscle contraction, which can help strengthen muscles, improve endurance, and aid in recovery.
- Suitable for sportspeople for pre-training warming up and post-training recovery (Endurance, Maximum strength, Explosive Strength, Toning).
- Retards or prevents muscle atrophy.
- Relaxes muscle spasms and reduces muscle soreness.
- Increases muscle growth and local blood circulation.
IF Function (Interferential Current)
Interferential current applies two different frequencies that interfere with one another to produce a medium frequency current within the tissues. It is a high-frequency therapy (4000 Hz) that penetrates the skin with greater ease and less stimulation than TENS, reaching greater depths and a larger volume of tissue.
- Promotes tissue healing and improves circulation to injured tissues.
- Provides pain relief and relieves muscle spasm.
- Reduces edema.
- Stimulates deeply situated muscles, such as the pelvic floor muscles.
- Effective for chronic intractable pain and post-surgical/post-trauma acute pain relief.

RUSS Function (Russian Stimulation)
Russian Stimulation is a specific form of electrical stimulation with a symmetrical Biphasic Square waveform. It was originally developed for building muscle mass in athletes and is now used to rebuild atrophied muscle mass and reduce edema of injured soft tissue. It stimulates motor nerves at a frequency of 2500Hz for deeper muscle penetration and stronger contraction.
- Strengthens muscles and increases muscle size.
- Improves muscular endurance and accelerates muscle recovery.
- Reduces muscle spasms.
- Especially beneficial for athletes, for example, in conjunction with physical therapy programs for anterior cruciate ligament (ACL) tears to improve strength.

9. User Tips
- Always start with the lowest intensity setting and gradually increase it until you feel a comfortable sensation.
- Ensure electrodes are firmly attached to clean, dry skin for optimal conductivity and to prevent skin irritation.
- Experiment with different programs and electrode placements to find what works best for your specific needs and comfort level.
- Do not exceed the recommended treatment time for any single session.
- If you experience any skin irritation, remove the electrodes and clean the area. Allow your skin to rest before reapplying.
10. Troubleshooting
If you encounter any issues with your JRW-600 device, please refer to the following common troubleshooting steps:
- No sensation or weak sensation:
- Check if the device is powered on and charged.
- Ensure lead wires are securely connected to the device and electrodes.
- Verify electrodes are firmly attached to the skin and are not dried out. Replace electrodes if necessary.
- Increase the intensity gradually.
- Device not turning on:
- Ensure the device is fully charged.
- Press and hold the power button for a few seconds.
- Skin irritation:
- Ensure skin is clean and dry before applying electrodes.
- Avoid placing electrodes on broken or irritated skin.
- Consider using hypoallergenic electrodes if irritation persists.
- Reduce intensity or treatment duration.
- Display issues:
- Restart the device.
- Ensure the battery is not critically low.
If the problem persists after trying these steps, please contact customer support.
11. Specifications
| Feature | Specification |
|---|---|
| Product Name | TENS + EMS + IF + RUSS Device |
| Model Number | JRW-600 |
| Type | 4 therapies in a device (TENS, EMS, IF, RUSS) |
| Properties | Pain Relief, Rehabilitation, Muscle Stimulation |
| Size | 6.8 x 2.8 x 13 cm |
| Intensity | 0 - 120 levels, Max: 120mA |
| Programs | Total 60 adjustable Programs (TENS: 23 fixed + 2 adj, EMS: 13 fixed + 2 adj, IF: 8 fixed + 2 adj, RUSS: 8 fixed + 2 adj) |
| Frequency | Max. 4150Hz |
| Waveform | Clinical trial waveform |
| Adjustable Working Time | 5 - 90 minutes (1 min/step) |
| Adjustable Pulse Width (TENS/EMS) | 50 µs - 300 µs (1 µs/step) |
| Ramp Up/Down Time (EMS) | 1 to 9 seconds |
| Contraction/Relaxation Time (EMS) | 1 to 60 seconds |
| IF Fundamental Frequency | PU1: 4000 Hz; PU2: 2500 Hz |
| IF Selectable Frequency | PU1: 4001-4150 Hz; PU2: 2501-2650 Hz |
| IF Interference Frequency | 1-150 Hz |
| RUSS Carrier Frequency | PU1: 2500Hz; PU2: 2000Hz |
| RUSS Adjustable Frequency | 1-100Hz (1 Hz/step) |
| Adjustable Cycle Time (IF/RUSS) | 5 to 60 seconds |
12. Maintenance
- Cleaning the Device: Wipe the main unit with a soft, damp cloth. Do not use abrasive cleaners or immerse the device in water.
- Electrode Care: After each use, place the electrodes back on their protective film. If the electrodes lose their stickiness, clean them gently with a drop of water on the adhesive side. Replace electrodes when they no longer adhere properly.
- Storage: Store the device and accessories in the provided hard carry case in a cool, dry place, away from direct sunlight and extreme temperatures.
- Battery: Recharge the device regularly, even if not in frequent use, to maintain battery health.
13. Warranty and Support
The JRW-600 device comes with a 1-year manufacturer warranty.
For technical support, warranty claims, or any questions regarding your device, please contact the manufacturer or seller through the following channels:
- Email: kaite189@163.com
- WhatsApp: +8613327309778





