Customizable Comfort: Experience tailored therapy with 3 vibration modes and 5 heating levels. Ideal for alleviating arthritis and rejuvenating leg vitality. Enhanced Portability: Featuring control panel and a 5000mAh rechargeable battery, the Knee Heating Pad ensures massage anytime, anywhere. Charge via Type-C cable for a cable-free experience at work, post-exercise, or during household chores. Multi-Functional Design: The Electric Knee Brace doubles as an elbow and shoulder massager, extending its use to arms and calves with an adjustable strap. This versatile design not only saves money but enhances your massage experience. Travel-Friendly: Crafted from stain-, wrinkle-free, breathable Fabric, this knee massager is easy to carry. Its foldable design fits into bags, making it perfect for travel and on-the-go relief. Intelligent timing protection: The system defaults to 30 minutes of use, and it automatically shut down after 30 minutes to prevent excessive massage, making it safe for use and your family to rest Rated voltage: 3.7v 5V=2A Rated power: 7.5W Battery capacity: 5000 mAh Working time: 4-6 hours Charging time: 3-5 hours Function: Heating temperature 0-65 degrees Heating level 5 Vibration level 3 Colour:As Shown Material:abs+flannel Package Contents: 1 * Electric knees Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.