Ohuhu BD4018
Contents
Ohuhu Tens Unit Muscle Stimulator Instruction Manual
Brand: Ohuhu | Model: BD4018
Introduction
The Ohuhu Tens Unit Muscle Stimulator is an advanced device designed to provide effective pain relief and muscle stimulation. Utilizing Transcutaneous Electrical Nerve Stimulation (TENS) and Electrical Muscle Stimulation (EMS) technologies, it helps alleviate various types of pain, reduce muscle soreness, and promote relaxation. This manual provides comprehensive instructions for safe and effective use of your device.

Image: Ohuhu Tens Unit Muscle Stimulator with all included accessories.
What's in the Box
Your Ohuhu Tens Unit package includes the following items:
- 1 x Ohuhu Tens Unit Device
- 3 x Electric Wire Leads
- 1 x Certified USB Power Adapter (US Standard)
- 3 Pairs x Palm-shaped Pads
- 3 Pairs x Oval-shaped Pads
- 2 Pairs x 5*10cm Button Pads
- 1 x USB Cable
- 1 x User Manual
- 1 x Acupoint Map
- 1 x Pad Sticking Board
- 1 x Storage Bag

Image: A detailed view of all components included in the Ohuhu Tens Unit package.
Key Features
- Rechargeable TENS Unit: Built-in powerful rechargeable lithium battery provides up to 8-10 hours of continuous use. A power indicator keeps you aware of the remaining battery life, preventing treatment interruptions.
- 24 Modes & 2 Outputs with Acupoint Map: Offers 24 diverse setting modes (e.g., Tuina, Acupuncture, Cupping) to satisfy various pain relief needs. Two outputs allow simultaneous massage of multiple body parts. An acupoint map is included for precision massage, aiding in the treatment of back pain, arthritis, shoulder tension, and muscle relief.
- 16 Electrode TENS Unit Pads: Features self-adhesive, reusable pads for easy application. Includes 3 pairs of palm-shape pads, 3 pairs of oval shape pads, and 2 pairs of button pads, designed to effectively target different body parts.
- Portable EMS TENS Unit: Compact size allows for easy portability, enabling users to enjoy a relaxing massage anytime, anywhere. Helps ease muscle pain, alleviate tiredness, soreness, and tension.
- Adjustable Time and Intensity: Customize your massage experience with an adjustable timer ranging from 10 to 60 minutes and 24 intensity levels. The unit automatically turns off after the timer completes to conserve power.
Safety Information
Please read all safety warnings and instructions before using the Ohuhu Tens Unit. Improper use may result in injury or device malfunction.
Important Precautions:
- Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
- Not suitable for pregnant women and individuals with hypertension.
- Not safe for people with pacemakers or other implanted medical devices.
- Do not apply pads over broken skin, open wounds, or areas with rashes.
- Consult a healthcare professional before use if you have any pre-existing medical conditions.
- Keep out of reach of children.

Image: Anti-shock function to avoid misuse, illustrating proper pad connection for effective stimulation.
Setup Guide
Follow these steps to set up your Ohuhu Tens Unit for first use:
- Charge the Device: Connect the USB cable to the Tens Unit and the power adapter. Plug the adapter into a wall outlet. The battery indicator on the screen will show charging status.
- Connect Lead Wires: Insert the lead wires into the output ports at the top of the Tens Unit. The device has two output ports (A and B) allowing for multiple pads to be used simultaneously.
- Attach Electrode Pads: Snap the electrode pads onto the metal buttons at the end of the lead wires. Ensure a secure connection.
- Prepare Skin: Clean and dry the skin area where you intend to place the pads. This ensures optimal adhesion and conductivity.
- Apply Pads: Carefully peel off the protective film from the electrode pads and firmly press them onto the desired body area. Ensure the entire pad surface is in contact with the skin.
- Power On: Slide the ON/OFF switch located at the top of the device to the 'ON' position. The LCD screen will illuminate.

Image: Visual instructions for connecting the pads and wires to the device.
Setup Demonstration Video:
Video: Official Ohuhu demonstration of the Tens Unit, including setup and various modes. This video provides a visual guide to connecting the pads and operating the device.
Operating Instructions
Once the device is set up, you can begin your therapy session:
- Select a Mode: Press the 'M' button to cycle through the main therapeutic modes. The LCD screen displays icons representing different massage types (e.g., Kneading, Acupuncture, Cupping).
- Choose a Sub-Mode: Use the circular navigation button (up/down/left/right) to select a specific sub-mode within the chosen main mode. Each main mode typically has 4 sub-modes.
- Adjust Intensity: Use the '+' and '-' buttons to increase or decrease the intensity level of the stimulation. Start with a low intensity and gradually increase it until you feel a comfortable, yet effective, sensation. There are 24 intensity levels available.
- Set Timer: Press the 'T' button to adjust the treatment duration. You can set the timer from 10 to 60 minutes in 10-minute increments. The device will automatically shut off once the time expires.
- Monitor Battery: The battery life indicator is displayed on the top right of the LCD screen. Recharge the device when the battery is low to ensure uninterrupted therapy.

Image: Overview of the 24 TENS + EMS modes for various pain relief needs.

Image: Details of the device's rechargeable battery and connectivity ports.
Recommended Application Points
The included acupoint map provides guidance on optimal pad placement for various body parts and conditions. Here are some common application areas:
- Back: For lower or upper back pain, place pads on either side of the spine or directly on the painful area.
- Shoulders: Apply pads to the shoulder muscles to relieve tension and soreness.
- Legs & Calves: Ideal for muscle fatigue after exercise or general leg pain.
- Joints (Knee, Elbow, Wrist): Place pads around the joint area, avoiding direct placement over the joint itself if it causes discomfort.
- Abdominals: Can be used for abdominal muscle relaxation or discomfort.

Image: Acupoint map for precision massage, guiding users on effective pad placement.

Image: Recommended massage points using the 16 electrode pads on different body areas.

Image: Visual guide to target any body part for quick pain relief.
Maintenance
Proper maintenance ensures the longevity and effectiveness of your Tens Unit and electrode pads:
- Cleaning Pads: After each use, gently wipe the adhesive side of the electrode pads with a small amount of water or a drop of standard gel hand sanitizer. This helps to clean them and maintain their stickiness.
- Storing Pads: Always reapply the plastic protector films to the adhesive side of the pads after use. Store them on the provided pad sticking board or in a sealed bag to prevent drying out and maintain tackiness.
- Device Cleaning: Wipe the Tens Unit device with a soft, dry cloth. Do not use abrasive cleaners or immerse the device in water.
- Storage: Store the device and all accessories in the provided storage bag in a cool, dry place, away from direct sunlight and extreme temperatures.
Troubleshooting
If you encounter issues with your Ohuhu Tens Unit, try the following troubleshooting steps:
- No Stimulation/Weak Sensation:
- Ensure the device is turned ON and fully charged.
- Check that all lead wires are securely plugged into the device and the pads.
- Verify that the electrode pads are firmly adhered to your skin. Ensure skin is clean and dry.
- Increase the intensity level gradually using the '+' button.
- Replace old or worn-out pads, as their conductivity may decrease over time.
- Device Not Turning On:
- Ensure the ON/OFF switch is in the 'ON' position.
- Charge the device for at least 30 minutes. The battery might be completely depleted.
- Screen Not Responding:
- Turn the device off and then on again to reset it.
- Ensure the battery is charged.
If the problem persists after trying these steps, please contact Ohuhu customer support for further assistance.
Specifications
| Feature | Detail |
|---|---|
| Model Number | BD4018 |
| Power Source | Rechargeable Lithium Battery |
| Continuous Use Time | Up to 8-10 hours |
| Modes | 24 Therapeutic Modes |
| Intensity Levels | 24 Levels |
| Outputs | 2 (supports 4 pads simultaneously) |
| Timer Settings | 10-60 minutes (in 10-minute increments) |
| Pads Included | 16 (various shapes) |
| Manufacturer | Ohuhu |
| Package Dimensions | 8.66 x 6.61 x 2.32 inches |
| Item Weight | 0.01 ounces |
Warranty and Support
Ohuhu stands behind the quality of its products. For specific warranty details, product registration, or technical support, please refer to the warranty card included in your package or visit the official Ohuhu website. You can also contact their customer service team directly for assistance with any questions or concerns regarding your Tens Unit.
Contact Information: Please refer to the contact details provided on the product packaging or the official Ohuhu website for the most up-to-date support information.
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