1. Introduction to TENS Therapy
The AUVON Dual Channel TENS Unit is designed to provide temporary relief from pain associated with aching and fatigued muscles. Transcutaneous Electrical Nerve Stimulation (TENS) therapy works by delivering small electrical impulses through electrodes placed on the skin, which can help block pain signals and stimulate endorphin production.

Image 1.1: Areas for TENS application, illustrating common pain points like the shoulder, lower back, and limbs.
Important Safety Notice:
TENS units should NOT be used by individuals with pacemakers, pregnant women, or those with epilepsy. Consult your doctor before use if you have any medical conditions.
2. Package Contents
Upon opening your AUVON Dual Channel TENS Unit package, please verify that all the following items are included:
- 1 x AUVON Dual Channel TENS Machine (Model JT8012B)
- 4 x 2" Square Electrode Pads
- 4 x Large Rectangle 2"x4" Electrode Pads
- 2 x Lead Wires
- 1 x USB Cable for charging
- 1 x User Manual (this document)
- 1 x Pad Holder
- 1 x Storage Pouch
Note: The 2"x2" pads are typically packaged together, and the 2"x4" pads are also packaged together. Unfold each sealed pack to count the pads.

Image 2.1: Visual representation of all items included in the AUVON TENS Unit package.
3. Device Overview
The AUVON Dual Channel TENS Unit is a compact, portable device designed for ease of use. It features independent dual channels (A and B), allowing for different modes and intensity settings to be applied simultaneously to two separate body areas.

Image 3.1: Front view of the AUVON Dual Channel TENS Unit and accessories.
Key Features:
- Dual Channels (A/B): Allows for simultaneous treatment of two different body areas with independent settings.
- 20 Pre-set Modes: Offers a variety of stimulation patterns for different types of muscle relief.
- USB Rechargeable: Built-in lithium-ion battery for convenient charging.
- Adjustable Intensity and Timer: Customize your therapy session duration and strength.

Image 3.2: Overview of the AUVON TENS Unit's main features.
4. Setup Instructions
4.1 Charging the Device
Before first use, fully charge the TENS unit. Connect the provided USB cable to the device's charging port and to a USB power source (e.g., computer, wall adapter). The battery indicator on the screen will show charging status. A full charge typically provides up to 10 hours of continuous use.

Image 4.1: The AUVON TENS Unit connected for charging, highlighting its rechargeable battery.
4.2 Connecting Lead Wires and Electrode Pads
- Insert the pin connectors of the lead wires into the output ports (A and B) on the top of the TENS unit.
- Attach the other end of the lead wires to the electrode pads. Ensure a secure connection.
- Peel the protective film from the electrode pads. Retain the film for reapplication after use.
5. Operating Instructions
Follow these steps to operate your AUVON TENS Unit:
- Power On/Off: Press and hold the central power button (labeled 'M' or 'T' depending on model) for 2-3 seconds to turn the device on or off.
- Select Channel: Press the 'A' or 'B' button to select the desired channel for adjustment. The selected channel will be highlighted on the screen.
- Select Mode: Press the 'M' button to cycle through the 20 available modes. Each mode offers a different stimulation pattern.
- Adjust Intensity: Use the '+' and '-' buttons to increase or decrease the intensity level for the selected channel. Start with the lowest intensity and gradually increase until a comfortable, yet effective, sensation is felt.
- Set Timer: Press the 'T' button to adjust the treatment duration. The timer can typically be set from 10 to 60 minutes. The device will automatically shut off when the timer expires.
- Lock Function: To prevent accidental changes during use, long-press the center button (between '+' and '-') to lock the screen. Repeat to unlock.

Image 5.1: Step-by-step guide for operating the AUVON TENS Unit controls.
Independent Channel Control:
The dual-channel design allows you to apply different modes and intensities to two separate areas simultaneously. For example, you can set Channel A to 'Tapping' mode with intensity level 5 for your shoulder, and Channel B to 'Palm Kneading' mode with intensity level 12 for your lower back.

Image 5.2: Example of independent dual-channel use on different body parts.
6. Electrode Pad Application
Proper placement of electrode pads is crucial for effective TENS therapy. Ensure your skin is clean and dry before applying pads.
General Guidelines:
- Place pads on or around the area of pain.
- Ensure pads are at least one inch apart.
- Avoid placing pads directly over joints, open wounds, or sensitive areas.
- The 2"x2" square pads are suitable for smaller, more compact areas like knees or elbows.
- The 2"x4" rectangular pads are ideal for larger areas such as the back or thighs.

Image 6.1: Recommended electrode pad placements for different body areas.
7. Care and Maintenance
7.1 Electrode Pad Care
The included electrode pads are designed for multiple uses (up to 45 uses with proper care). To prolong their lifespan:
- After each use, reapply the protective film to the adhesive side of the pads.
- If pads lose their stickiness, gently wipe the adhesive surface with a damp cloth (water only) and let them air dry. Do not use soap or alcohol.
- Store pads on the provided pad holder or in a sealed bag to prevent drying out.
- Replace pads when they no longer adhere well to the skin or if the sensation becomes uneven.

Image 7.1: Cross-section of an AUVON electrode pad, illustrating its construction for durability and conductivity.
7.2 Device Care
- Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or immerse in water.
- Store the device in the provided pouch in a cool, dry place away from direct sunlight.
8. Troubleshooting
If you encounter issues with your AUVON TENS Unit, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sensation or weak sensation | Low battery; Pads not adhering well; Lead wires not connected; Intensity too low; Device off. | Charge device; Clean/replace pads; Check wire connections; Increase intensity gradually; Turn device on. |
| Uneven sensation | Pads are old/dry; Poor skin contact; One lead wire faulty. | Clean/replace pads; Ensure full pad contact; Try new lead wires. |
| Device does not turn on | Battery depleted; Device malfunction. | Charge device fully; If problem persists, contact customer support. |
| Screen is unresponsive | Screen lock is active. | Long-press the center button to unlock the screen. |
9. Specifications
- Model Number: JT8012B
- Product Dimensions: 4.12 x 2.24 x 0.43 inches
- Item Weight: 11.68 ounces
- Battery: 1 Lithium Ion battery (included)
- Channels: Dual (A/B)
- Modes: 20
- Manufacturer: AUVON
10. Warranty and Support
AUVON provides a 24-month warranty for the Dual Channel TENS Unit Muscle Stimulator Machine, Model JT8012B. This warranty covers manufacturing defects and ensures reliable performance of your device.
For technical support, warranty claims, or any questions regarding your product, please contact AUVON customer service through the official AUVON website or your purchase platform.
11. Important Legal Disclaimer
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.
This device is intended for temporary relief of pain associated with sore and aching muscles due to strain from exercise or normal household and work activities. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.





