Ronix 8851 POWER-PRO Massage Gun
Safety Instructions
To reduce the risk of malfunction, electric shock, injury, fire, death, and equipment damage, please read all instructions and warnings on this product in this manual before using this product.
- Do not use it by or near children. Do not use this product and accessories as toys.
- It is forbidden to use on non-dry, clean skin surface.
- It can be used across the clothes and gently pressed and moved on the skin for about 60 seconds.
- Do not use above the neck or any hard or boned part of the body, or sensitive areas.
- Use the product only on the soft tissues of the body without causing pain or discomfort.
- Do not massage areas that are bruised or on open wounds.
- Stop use if you have any signs of abnormal pain or discomfort.
- Do not place any objects on the vents of the product.
- Do not immerse in water or allow water to enter the vents of the product.
- Do not drop or expose the product to a fire source.
- Do not drop or improperly use the product.
- Keep away from liquids or heat sources. Keep the vents free of dust and debris.
- After charging is complete, remove the charger from the battery.
- Please note that the device can not be used when charging.
- Please use the device according to the instructions for use.
- Carefully inspect the equipment before each use.
- In order to ensure that the product can be used continuously, please charge the product in time to ensure that the product is always powered, and prevent the product from being unable to turn on due to a lack of power.
Specifications
| Model | 8851 |
| Battery | Li-ion battery/1600mAh |
| Motor type | Brushless Electric Machine |
| Motor Speed | MAX: 2800RPM |
| Speed Mode | 3 Level Adjustable |
| Speed | 1st Speed: 1600RPM, 2nd Speed: 2200RPM, 3rd Speed: 2800RPM |
| Amplitude | 10mm |
| Noise level | 60db |
| Charge time | 2ACharge: 4H |
| Head(type/application) | 1: U-shaped massage head 2: Flat massage head 3: Cone massage head 4: Round circular massage head |
| Include | 1- Charger+type C cable 2- 4 Massage Heads 3- Manual |
Part List
- Speed- Level Indicator Light: From Left to Right (1 — 4 levels)
- Battery- Level Indicator: 4 Lights—100% full of power
- Lights— 65%-80% of power
- Lights— 40%-60% of power
- Light— Less power, please charge asap.
- ON/OFF Switch: Long-press for 2 seconds to start/stop the device, short-press to adjust the speed level from level 1 to level 3.
Assembly
Insert/Pull the head into the hole of the black connector, and rotate it at the same time until it can not go in/out. Special U-shaped, align the two Vertical lines on the head and the black connector, and then insert the U-shaped into the hole of the black connector, and press it until it can not go in/out.
When assembling a U-shaped head, align the inner side of the horizontal line (the red line) with the machine, which means in place. If there is a gap between the line and the machine, there will be a risk of falling off when using it.
Charging
- Fully charge the battery for six hours before first use.
- When charging, connect the Type-C port of the provided charging line to the battery charging port and connect the USB port to the charger.
- The Battery Level Indicator is flashing regularly when the device is charging.
- When the first light is on, the remaining power is 20%-35%; when the second light is on, the remaining power is 40%-60%; when the third light is on, the remaining power is 65%-80%; when the fourth light is on, the remaining power is 85%-100%.
- The battery can be charged in the situation of any time and with any amount of electricity; the device can be started while charging.
- The battery is exhausted to less than 20% (the first left Battery – Level Indicator LED flashes) and needs to be recharged.
- The average running time is about 2 hours, depending on the speed level and pressure during use.
Accessories
Operation
- Press and hold the ON/OFF Switch to turn the device to level 1 speed. Each press of the button will increase one level until the level 4 speed. Press the button at level 4 to enter the standby mode (level 0), level 4 to level 0. Press and hold again for 3 seconds to turn the device to level 1, and so on.
- Under any speed levelpressingss and holding can close the device. Breathing light flashing.
- In the standby state, press and hold for 3 seconds to shut down directly 15 seconds without operation will automatically shut down.
- The device will stop running after 10 minutes of continuous use for intelligent protection. Restart it again if you use it again after the device shuts down.
- This is an abnormal operation protection function setting. From running to standby mode, short-press the button to restart; it’s a normal situation.
If you are interested in exploring other Ronix tools, check out the Ronix RH-9855 6-inch Digital Measuring Wheel for precise distance measurement in construction and DIY projects.
Maintenance, Cleaning, Storage & Transportation
- Use a slightly damp towel to clean the device and dry it with a soft cloth.
- For storage or travel, store the device in the supplied portable bag.
- Store in a dry, well-ventilated place with no corrosive gases, no less than 250mm from the ground, and no more than 5 stacked layers.
- If not used for a long time, the device should be cleaned, then packaged in storage, and charged every month.
- This product is suitable for automobile, train, ship, and airplane transportation.
- This product should be fixed in transportation to prevent violent vibration, collision, tumbling, and falling, and should be put upward, put down gently, and avoid damp areas.
Environmental Instructions
At the end of the service life of this product, please do not throw it away with general household waste. Put this product in the designated recycling station of the government. You can also send this product back to the after-sales service center of the factory. The personnel of the service center will handle it in an environmentally friendly way.
Environmental Protection Period Description
This electronic and electrical appliance is being used under the conditions of this manual, the harmful substances or elements contained therein are not leaked, and the period of time during which it does not cause pollution to the environment or cause serious damage to people and property is 10 years.
Usage

U-Shaped
- Suitable for massaging the neck, spine, and Achilles tendon
Round
- Suitable for massage arms, waist, back, buttocks, large muscles like legs, and legs
Cone
- For an impact deep organization, such as the palmar and plantar meridians
Flat
- Suitable for massaging the body muscles of various parts
Arm

| Brachioradialis | 10-15s × 3 times |
| Flexor Carpi Radialis | 10-15s × 3 times |
| Palmaris Longus muscle | 12-15s × 3 times |
| Flexor Carpi Ulnaris Muscle | 10-15s × 3 times |
| Extensor Digitorum | 05-10s × 2 times |
| Muscle Extensor Carpi Radialis Longus | 05-10s × 2 times |
| Muscle Extensor Carpi Radialis Brevis | 05-10s × 2 times |
| Biceps Brachii | 12-20s × 3 times |
| BrachiaLis | 12-20s × 3 times |
| Deltoid | 12-20s × 3 times |
| Pectoralis Major | 12-20s × 3 times |
Shoulder

| Triceps Brachii | 15-20s × 3 times |
| Rhomboid Muscle | 20-30s × 3 times |
| Trapezius Superior Fasciculus | 15-20s × 3 times |
| Trapezius Intermedius Fasciculus | 15-20s × 3 times |
| Trapezius Lower Fasciculus | 15-20s × 2 times |
| Supraspinatus | 10-15s × 2 times |
| Levator Scapulae Muscle | 10-12s × 2 times |
| Teres Major Muscle | 10-12s × 3 times |
| Teres Minor Muscle | 10-12s × 3 times |
| Infraspinatus | 10-12s × 3 times |
| Tips: Massage the muscles from the middle to the sides, from top to bottom. erectorspinae(lumbarsegments) | 30-60s × 3 times |
| Iatissimus Dorsi | 30-60s × 3 times |
Waist

| Thoracic Lumbar Fascia | 40-60s × 3 times |
| Psoas Major | 30-60s × 3 times |
| Internal and External Oblique Muscles | 10-15s × 2 times |
| Erector Spinae (Thoracic Segments) | 15-20s × 2 times |
| Quadratus Lumborum | 20-30s × 2 times |
| Iliopsoas Muscle | 20-30s × 2 times |
| Gluteus Maximus | 30-60s × 3 times |
| Gluteus Medius | 30-60s × 3 times |
| Piriformis | 60-90s × 3 times |
Leg

| Biceps Femoris Muscle | 20-30s × 3 times |
| Semitendinosusi | 20-30s × 3 times |
| Muscle Semimembranosus | 20-30s × 3 times |
| Gracilis | 10-15s × 3 times |
| Muscle Adductor Brevi | 10-15s × 2 times |
| Muscle Adductor Longus | 10-15s × 2 times |
| Muscle Rectus Femoris Temoriss | 30-45s × 2 times |
| Vastus Lateralis Muscle | 30-45s × 2 times |
| Vastus Medialis Muscle | 30-45s × 2 times |
| Sartorius | 30-45s × 3 times |
Foot

| Muscles gastrocnemius | 20-30s × 3 times |
| Soleus | 20-30s × 3 times |
| Tibialis anterior muscle | 15-20s × 3 times |
| Peroneuslongus | 15-20s × 3 times |
| Short peroneal | 15-20s × 2 times |
Massage Gun Operational Troubleshooting
Fault Description: Fault Exclude
| The massage head slides out and drops | Please check that the massage head is installed in place. (See instructions for detailed operation on the 5th page) |
| The device is unable to charge | Please check whether the charging port and power supply are plugged in. Check whether the voltage and current of the charging head match the product requirements. |
| The massage head stops running after the external force | This is an abnormal operation protection function settiFromfrom running to standby mode, short-press the button to restart; it’s a normal situation. (See instructions for detailed operation on 8th page) |
Reasonable use of the product can effectively extend the service life. Suggestion:
- Do not throw or drop when using.
- The maximum continuous use time is not more than 30 minutes, The maximum continuous use time should not exceed 30 minutes. Keep away from a damp environment when using or storing.
- If you don’t use it for a long time, please charge the product once a 1 month to ensure that the product is always powered.
Customer Support
- Address: Lyoner Str. 36 60528 Frankfurt am Main
- Tel:+49 69 310 900 66
- Website: www.ronixtools.com
FAQs
Q: How does the massage gun work?
It sends quick pulses deep into muscle tissue using high-frequency percussion vibrations. After vigorous exercise, this aids in releasing tension, breaking up lactic acid accumulation, and enhancing mobility.
Q: How many speed levels does the Ronix 8851 have?
Depending on your comfort level and muscle condition, the Ronix 8851’s six programmable speed settings let you select between intense deep-tissue stimulation and mild relaxation.
Q: How long does the battery last on a full charge?
Up to five hours of continuous use are possible with the integrated rechargeable lithium-ion battery, contingent on the pressure and speed level chosen.
Q: How long does it take to fully charge the massage gun?
Using the included charging adaptor, a full charge usually takes two and a half to three hours. When the charging process is over, the LED indication light will turn green.
Q: Can I use the Ronix 8851 while it’s charging?
No. The device must not be used when plugged in for safety concerns. Before using it, always unplug it from the charger.
Q: Is the massage gun noisy during operation?
No. The Ronix 8851 offers strong performance and quiet comfort at less than 55 dB thanks to cutting-edge brushless motor technology.




Safety Instructions

