1. Product Overview
The KoolerThings Handheld Back Massager is designed to provide deep tissue massage for muscle pain relief. Its percussion technology targets various body parts including feet, calves, neck, shoulders, back, arms, and legs. This cordless, electric massager features a rechargeable 2600mAh battery, offering extended use for convenience at home or on the go.
Key Features:
- Deep Tissue Percussion Massage
- 6 Interchangeable Massage Heads
- 6 Speed Settings for adjustable intensity
- Built-in Heat Function for enhanced muscle relief
- Cordless and Rechargeable (2600mAh battery, up to 140 minutes runtime)
- Ergonomic, non-slip design for comfortable handling
- Automatic 20-minute shut-off to prevent overheating
2. Important Safety Instructions
Please read all instructions carefully before using the massager. Retain this manual for future reference.
- Do not use the massager for more than 20 minutes at a time to prevent overheating and ensure product longevity.
- Keep the device away from water or damp environments.
- Do not use on open wounds, swollen areas, or skin eruptions.
- Consult a physician before use if you have any medical conditions, are pregnant, or have a pacemaker.
- Keep out of reach of children.
- Only use the provided charging cable.
3. Package Contents
Verify that all items are present and in good condition upon opening the package:
- 1 x KoolerThings Handheld Back Massager Unit
- 6 x Interchangeable Massage Heads
- 1 x Charging Cable
- 1 x User Manual

Image: The KoolerThings Handheld Back Massager with its packaging and included accessories.
4. Setup
4.1. Charging the Device
Before first use, fully charge the massager. Connect the charging cable to the massager and a suitable power source. The battery indicator will show charging status. A full charge provides approximately 140 minutes of use.
4.2. Attaching Massage Heads
Select the desired massage head. Align the head with the massager's attachment point and firmly press it into place until it clicks securely. To remove, gently pull the head off.

Image: A display of the seven interchangeable massage heads, including cup, flat, spiked, 1-point, 6-point, round, and heating heads.
Video: Official product video demonstrating the rechargeable handheld massager, including attachment changes and basic operation.
5. Operating Instructions
5.1. Power On/Off
Press the power button (usually located on the handle) to turn the massager on. Press it again to turn off the device.
5.2. Adjusting Speed and Mode
The massager features 6 speed settings and multiple massage modes. Use the dedicated speed and mode buttons on the control panel to cycle through the options and find your preferred intensity and pattern.
5.3. Using the Heat Function
If your chosen massage head supports heat (e.g., the Heating Head), press the heat button on the control panel to activate it. The heat function provides additional comfort and muscle relaxation. Allow a few minutes for the head to warm up.
5.4. Massage Techniques
Apply the massager to the desired body part. Move the massager slowly and steadily over the muscles. Avoid applying excessive pressure, especially on bony areas. The ergonomic design and long handle allow for easy reach to your back and other hard-to-reach areas.

Image: The easy one-touch control panel with buttons for heat, mode, speed, and on/off.

Image: A user demonstrating the massager's use on the shoulder area.
6. Interchangeable Massage Heads
The massager comes with 6 distinct heads, each designed for specific massage experiences:
- Cup Head: Ideal for gentle, broad-area massage.
- Flat Head: Suitable for general full-body relaxation.
- Spiked Head: Provides a stimulating massage, good for larger muscle groups.
- 1-Point Head: For targeted deep tissue massage on specific knots.
- 6-Point Head: Offers a broader, multi-point massage for larger areas.
- Round Head: Versatile for general use and sensitive areas.
- Heating Head: Delivers soothing warmth along with massage, perfect for muscle relaxation.
7. Maintenance
7.1. Cleaning
Disconnect the massager from the power source before cleaning. Wipe the device and massage heads with a soft, damp cloth. Do not use abrasive cleaners or immerse the device in water.
7.2. Storage
Store the massager in a cool, dry place away from direct sunlight and extreme temperatures. Keep it out of reach of children.
8. Troubleshooting Guide
Refer to this section for common issues and their solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Massager does not turn on. | Low battery or not charged. | Ensure the device is fully charged before use. Charge for at least 30 minutes if completely drained. |
| Heat function is not noticeable. | Only specific heads support heat; insufficient warm-up time. | Ensure the Heating Head is attached and the heat function is activated. Allow 2-4 minutes for the head to reach optimal temperature. The heat is designed to be gentle. |
| Attachments are difficult to change. | Incorrect alignment or debris. | Ensure the attachment is correctly aligned with the massager's head. Clean any debris from the attachment point. |
| Massager stops unexpectedly. | Automatic shut-off activated (20-minute timer) or low battery. | This is a safety feature. Allow the device to cool down before restarting. If not overheated, recharge the battery. |
9. Product Specifications
| Feature | Specification |
|---|---|
| Model Number | KoolerThings Handheld Back Massager |
| Power Source | Battery Powered (2600mAh) |
| Battery Life | Up to 140 minutes (on full charge) |
| Massage Speeds | 6 |
| Massage Modes | 6 |
| Automatic Shut-off | 20 minutes |
| Material | Plastic |
| Color | White |
| Package Dimensions | 17.36 x 6.14 x 3.7 inches |
| Item Weight | 2.5 Pounds |
10. Warranty Information
KoolerThings products are manufactured to the highest quality standards. For specific warranty details and terms, please refer to the warranty card included in your product packaging or visit the official KoolerThings website.
11. Customer Support
If you have any questions, concerns, or require assistance with your KoolerThings Handheld Back Massager, please contact our customer support team. Contact information can be found on the product packaging or our official website.