Heated Joint Massager — R-3 Heat and Vibration Recovery Wrap for Knee, Elbow and Shoulder

Sitting at a desk for hours reduces blood flow to your knees, elbows and shoulders — not from injury, just from staying still. The fluid that keeps joints moving freely settles and thickens when a joint holds one position for an extended period. The result is the stiff, locked feeling that builds through a long working day or intensifies after physical activity.

Heat increases circulation to the affected area. Vibration physically moves the fluid that builds up around a joint under sustained stillness. Together they work faster than either alone. The R-3 delivers both simultaneously in a 20-minute session, then shuts off automatically.

Why Heat and Vibration Work Together

Heat and vibration address joint stiffness through two different mechanisms that complement each other.

Heat applied to a joint increases local blood flow — bringing circulation back to an area that has been restricted by sustained stillness or physical load. Consistent warmth at the right temperature reaches into the joint tissue and the surrounding area, promoting the movement of blood and fluid that the joint needs to feel loose and mobile again.

Vibration works differently. Where heat increases circulation, vibration physically moves the fluid that settles around a joint during extended inactivity. This is the direct mechanical cause of the stiff, locked feeling after long periods at a desk or following heavy physical activity. Vibration at the right frequency and intensity addresses this directly without requiring movement from the user.

Running both simultaneously — heat opening up circulation while vibration moves joint fluid — produces faster results than applying either in isolation. The R-3 is designed to deliver both in the same 20-minute session.

The R-3 Performance Pillars

Three Precise Heat Settings

The R-3 heats to three precise temperature levels — 40°C, 55°C, and 60°C.

Start at 40°C for gentle warmth that gets blood moving without intensity — suitable for end of day maintenance or first use in the morning on a cold joint. Move to 55°C for moderate heat that reaches deeper into the joint tissue. Use 60°C when you need the most penetrating warmth — after significant physical activity or when stiffness is pronounced. Most users start at the lowest setting and increase as the joint warms through the session.

Three Vibration Levels

The R-3 has three vibration levels that work on the joint mechanically. Level 1 is a gentle pulse suitable for sensitive joints or first-time use. Level 2 is moderate — the most commonly used setting for daily recovery. Level 3 is the strongest setting for areas that feel particularly tight or have been under sustained load.

Heat and vibration can be used together or independently. The R-3 runs both simultaneously by default — adjust either setting independently during a session using the control panel.

One Wrap — Three Joints

The R-3 fits the knee, elbow, and shoulder using one brace and a set of included extension straps — no separate purchases needed for different joints.

The brace wraps around the knee directly out of the box. To use it on the elbow or shoulder, attach the included extension straps to the side attachment points — these extend the wrap length to fit the different circumference of those joints and secure with the adjustable fastening. The brace measures 51cm × 28.5cm and fits most adult joint sizes across all three locations.

20-Minute Auto Shut-Off

Each session runs for 20 minutes and the device shuts off automatically. No timer needed. No risk of overuse from falling asleep during a session. The fixed session length is based on the standard recommended duration for heat and vibration therapy on a single joint.

Fully Cordless During Use

The R-3 is completely cable-free during a session. Charge via USB-C in approximately 180 minutes — the battery is rated for approximately five years of regular use. Rated power is 7W. Charge it when not in use and it is ready whenever you need it.

Who the R-3 Is Most Suitable For

Desk workers with end-of-day joint stiffness. Hours of static seated posture restricts blood flow

to knees and reduces mobility. A 20-minute R-3 session at the end of a working day addresses this directly.

People returning to physical activity after a break. Joints that have been underused respond well to heat and vibration before and after activity — warming up the joint before training and recovering it afterwards.

Anyone with recurring joint stiffness in multiple locations. The single wrap covering knee, elbow, and shoulder removes the need for separate devices for each joint.

Travellers and remote workers. Cordless operation and USB-C charging make the R-3 practical for use anywhere — at a desk, on a sofa, or in a hotel room.

Choose Your Configuration

Single unit — one wrap for targeted single joint recovery. Use on whichever joint needs attention on a given day.

Pair — two wraps for simultaneous recovery of both knees, both elbows, or alternating joints. One unit charges while the other is in use.

Available in black or grey.

Technical Specifications

Specification	Detail
Heat settings	40°C / 55°C / 60°C
Vibration levels	3
Session length	20 minutes — auto shut-off
Charge time	Approximately 180 minutes
Charging	USB Type-C
Power	7W
Dimensions	51cm × 28.5cm
Certifications	CE, RoHS, FCC
Colours	Black / Grey
Configuration	Single unit or pair

Frequently Asked Questions

Can I use it on both knees? The R-3 is sold as a single unit or as a pair. A single unit can be used on either knee, either elbow, or either shoulder. For simultaneous use on both knees, order a pair.

Can I adjust the heat and vibration independently? Yes. Heat and vibration each have three settings that can be adjusted independently during a session. You can run heat only, vibration only, or both simultaneously.

How long is one session? Each session runs for exactly 20 minutes with automatic shut-off. This is the standard recommended duration for heat and vibration therapy on a single joint.

Does it work on a shoulder? Yes. The included extension straps extend the wrap length to fit around the shoulder. The same straps work for the elbow. No separate attachment is needed for different joints beyond the included straps.

How long does the battery last between charges? The battery is rated for approximately five years of regular use. Charge time is approximately 180 minutes via USB-C. Exact sessions per charge depend on heat and vibration settings used.

Is it safe to use every day? Yes for most users — daily use at the lower heat settings is appropriate for maintenance. Consult your doctor before daily use if you have an existing joint condition, circulatory issue, or skin sensory disorder.

Before You Use

Read the included instruction manual before your first session. Each session is 20 minutes — the device shuts off automatically at the end.

Consult your doctor before use if you have an existing joint condition, circulatory issue, skin sensory disorder, or are pregnant. Do not use on broken or irritated skin. Do not use if you have reduced skin sensitivity in the target area. Keep out of reach of children.

Sourcing Transparency

The R-3 is sourced from a verified manufacturer and supplied in original manufacturer packaging. PeakFit independently selects products against our technical specification standards and provides support directly to every customer.

Contact us at peakfitstore.com with any questions.