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3-in-1 knee therapy device – wireless infrared, laser & vibration therapy
- 3-in-1 knee therapy device: Deep heat (40–60°C / 104-140 F°), airbag compression, and vibration all in one.
- Wireless: 3000 mAh battery for up to 5 hours of runtime, weighs only 650 g (1,4 pounds).
- Ergonomic 360° band adapts to any leg shape; intuitive LED touch control.
15 minutes a day is enough to effectively relieve pain over a long period of time.
The application is not limited to the knees and can also be used for the shoulders or elbows, for example.
Try jackrelief® risk-free for 30 days – if you're not satisfied, we'll refund your purchase price. We also offer a 24-month manufacturer's warranty against material and functional defects.
3-in-1 technology
Infrared and laser light penetrate into the deeper tissue layers – promotes blood circulation and regeneration.
Deep heat selectable in 104 °F / 122 °F / 140 °F – loosens tense muscles and joints.
Vibration in 3 modes – stimulates nerve endings, reduces stiffness.
The upgrade for your knee – anytime & anywhere
The new jackrelief® generation combines deep heat, laser pulses, and pinpoint vibration in a lightweight, wireless device. Designed to relieve pain, restore mobility, and make every step easier.
Wireless & suitable for everyday use
- 3000 mAh high-performance battery → up to 5 hours of battery life
- Only 650 g – as light as a tablet
- One-hand LED touchscreen
Ergonomic design
The flexible 360° wrist strap adapts to any leg shape and holds the device securely in place – whether you're watching TV, working, or traveling.
Infrared combined with vibration is an evidence-based method for pain relief
Frequently asked questions
Shipment
Currently to EU, USA & Australia. More countries will follow soon.
Since we ship to many countries around the world, shipping times may vary depending on the country and region. These are our average shipping times:
- USA: 8-14 business days
- Australia: 10-14 business days
- European Union: 7-12 business days
Shipments within a special region or island may be delayed by a few days.
Please also note that processing time is 24 hours until your order is confirmed. No deliveries are made on Sundays and public holidays.
After shipping, you'll receive an email with a tracking link. Alternatively, you can track your shipment directly on our website using the tracking number in the navigation menu under "Tracking."
Payment & Guarantee
Klarna, PayPal, Sofortüberweisung, credit card (Visa, Mastercard, AmEx), Apple Pay, Google Pay.
Checkout is SSL encrypted & PCI-DSS compliant; no storage of your card details.
Try it risk-free for 30 days – no favors = full refund.
24-month manufacturer's warranty on all devices.
product
15-20 minutes per knee is sufficient.
No – infrared and lasers also work through light clothing.
Using the included USB-C cable; 0 → 100% in approximately 2 hours.
Yes, integrated sensors automatically stop at 140°F. For sensitive skin, select the 104°F setting.
Design & QC in Germany, final assembly in an ISO 13485 certified facility in Shenzhen.
Yes, you can also use our 3-in-1 vibration and infrared therapy device for different body regions, such as the shoulder or elbow.
Our 3-in-1 therapy device is designed for a variety of applications, including shoulder, elbow, and knee. The three modes support the healing of various conditions such as osteoarthritis, joint pain, swollen knees, post-exercise pain, and much more.
Order & Customer Support
Within 12 hours by email – as long as it hasn't been sent yet, we'll adjust everything free of charge.
Simply send us an email to info@starsa.eu – we will respond within 24 hours (working days) or use our "Help & Contact" page.
WHAT OUR CUSTOMERS SAY
Find out what other customers have to say about our products.