1. Introduction
Thank you for choosing the ONBALANCE 3-in-1 Muscle Electro stimulator. This device is designed to provide Transcutaneous Electrical Nerve Stimulation (TENS), Electrical Muscle Stimulation (EMS), and Massage functions for rehabilitation, pain relief, muscle toning, and relaxation. Please read this manual thoroughly before use to ensure safe and effective operation.
2. Important Safety Information
Always consult with a healthcare professional before using this device, especially if you have pre-existing medical conditions. Do not use this device if you have a pacemaker, are pregnant, have epilepsy, or have any heart conditions. Keep out of reach of children.
- Do not apply electrodes over open wounds, rashes, or swollen, infected, or inflamed areas.
- Do not use while driving or operating machinery.
- Discontinue use if you experience any adverse reactions.
- Use only the electrodes and accessories provided or recommended by the manufacturer.
3. Package Contents
Upon opening the package, verify that all items are present and in good condition:
- ONBALANCE 3-in-1 Muscle Electro stimulator device
- Electrode pads (2 pairs)
- Electrode cables
- AAA Batteries
- User Manual
- Warranty Policy

Image: Contents of the ONBALANCE electro stimulator package, including the main unit, electrode pads, connection cables, user manual, and warranty card.
Video: An unboxing video demonstrating the contents of the ONBALANCE 3-in-1 Muscle Electro stimulator package, showing the device, electrode pads, cables, batteries, and documentation.
4. Device Overview
The ONBALANCE electro stimulator is a compact and portable device designed for ease of use. It features a clear display and intuitive controls.

Image: Front view of the ONBALANCE electro stimulator, highlighting its compact design, digital display, and control buttons for mode selection and intensity adjustment.
4.1 Controls and Display
- Power/Mode Button (M): Turns the device on/off and cycles through TENS, EMS, and MASS modes.
- Program Button (P): Selects different programs within each mode.
- Intensity Buttons (+/-): Adjusts the intensity level for Channel 1 (CH1) and Channel 2 (CH2) independently.
- Display Screen: Shows selected mode, program number, treatment time, and intensity levels for both channels.

Image: The electro stimulator's display, illustrating the available programs: 9 for TENS, 8 for EMS, and 5 for Massage.
4.2 Output Channels
The device features two independent output channels (CH1 and CH2) located at the top, allowing for simultaneous treatment of two different areas or use with four electrode pads.

Image: Top view of the electro stimulator, clearly showing the two output channels (CH1 and CH2) for connecting electrode cables.
5. Setup
5.1 Battery Installation
- Open the battery compartment cover on the back of the device.
- Insert the AAA batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
5.2 Connecting Electrodes
- Connect the electrode cables to the output channels (CH1 and/or CH2) at the top of the device.
- Attach the electrode pads to the other end of the cables.
- Ensure the electrode pads are clean and adhere firmly to the skin.
6. Operating Instructions
6.1 Turning On/Off and Mode Selection
- Press and hold the Power/Mode (M) button to turn on the device.
- Press the Power/Mode (M) button repeatedly to cycle through the available modes: TENS, EMS, and MASS. The selected mode will be displayed on the screen.
- To turn off the device, press and hold the Power/Mode (M) button.
6.2 Program Selection
Once a mode is selected, press the Program (P) button to cycle through the different programs available within that mode. Refer to the display for the current program number.
6.3 Intensity Adjustment
Use the +/- buttons for CH1 and CH2 to adjust the intensity of the electrical impulses for each channel independently. Start with the lowest intensity and gradually increase it until you feel a comfortable, yet effective, sensation. Avoid increasing the intensity to an uncomfortable or painful level.
6.4 Treatment Modes Explained
- TENS Mode (Transcutaneous Electrical Nerve Stimulation):
Ideal for temporary pain relief, such as muscle pain, joint pain, back pain, or neck pain, without the need for medication. Suitable for elderly individuals or those with chronic muscle pain.

Image: The electro stimulator displaying TENS mode, indicating its use for rehabilitation and pain relief.
- EMS Mode (Electrical Muscle Stimulation):
Used for muscle strengthening and toning. This mode helps stimulate muscle contractions, which can be beneficial for rehabilitation and improving muscle performance.

Image: The electro stimulator displaying EMS mode, indicating its use for muscle strengthening and toning.
- MASS Mode (Massage):
Relaxes muscles, reduces accumulated tension, and improves circulation. Ideal for office workers, students, and individuals experiencing fatigue, tension, or stress seeking relaxation.

Image: The electro stimulator displaying MASS mode, indicating its use for muscle relaxation and tension reduction.

Image: The electro stimulator highlighting its three primary treatment modes: TENS, EMS, and MASS.
7. Maintenance
- Cleaning the Device: Wipe the device with a soft, damp cloth. Do not use abrasive cleaners or immerse the device in water.
- Electrode Care:
- After each use, place the electrode pads back on their protective film.
- If the pads lose their adhesiveness, gently clean them with a damp cloth and allow them to air dry.
- Replace electrode pads when they no longer stick well or if they cause discomfort.
- Storage: Store the device and accessories in a cool, dry place, away from direct sunlight and extreme temperatures. Remove batteries if the device will not be used for an extended period.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Low or dead batteries; incorrect battery installation. | Replace batteries with new AAA batteries; ensure correct polarity. |
| No sensation or weak sensation. | Electrodes not properly attached; intensity too low; worn-out electrodes; loose cable connection. | Ensure electrodes are firmly attached to clean skin; increase intensity gradually; replace old electrodes; check cable connections. |
| Skin irritation under electrodes. | Electrodes applied to irritated skin; allergic reaction; prolonged use in one spot. | Discontinue use immediately; consult a doctor; ensure skin is clean and dry before application; rotate electrode placement. |
9. Specifications
- Brand: ONBALANCE
- Model: ONB-R-C4D
- Modes: TENS, EMS, MASS
- Programs: 9 TENS, 8 EMS, 5 MASS (Total 22 programs)
- Channels: 2 independent output channels
- Power Source: AAA Batteries
- ASIN: B0916M6HCJ
10. Warranty and Support
The ONBALANCE 3-in-1 Muscle Electro stimulator comes with a warranty. Please refer to the included Warranty Policy document for detailed terms and conditions, including coverage period and how to make a claim.
For technical support, questions, or to purchase replacement parts (such as electrode pads or cables), please contact your retailer or visit the official ONBALANCE website.
Protection Plans (Optional):
- Assurant - 2 Years Personal Care - Accidental Damage Insurance
- Assurant - 3 Years Personal Care - Accidental Damage Insurance
- Assurant - 4 Years Personal Care - Accidental Damage Insurance
These optional protection plans are available for purchase separately and provide extended coverage for accidental damages. Please refer to the specific plan details for terms and conditions.