【70-Bead Red Light Coverage】Equipped with 70 upgraded red light beads. It uses a combination of 660nm + 850nm, with extra beads placed behind the knee (popliteal area) to enhance coverage. Includes 5 selectable light modes, including 10Hz and 40Hz pulse options. 【Cordless Design】Built with a rechargeable battery for extended cordless use. The Type-C fast charging port allows convenient recharging. Designed for use at home, in the office, or while traveling, providing flexibility and mobility throughout your day. 【5 Heat Levels & 5 Vibration Settings】Features 5 adjustable heat levels (104°F–126°F) and 5 vibration settings. Users can freely choose their preferred warmth and vibration combination based on personal comfort needs. Suitable for athletes, office workers, and seniors who enjoy customizable knee-area experiences. 【Ergonomic Knee-Fit Design】This 3D ergonomic wrap is shaped to fit naturally around the knee. Adjustable straps ensure a secure fit and support a wide range of leg sizes—calves up to 25.6 inches and thighs up to 29.5 inches. Designed for stability and comfortable wear. 【Dual Pulse Light Modes】Offers dual-frequency pulse options—10Hz and 40Hz. These modes provide different rhythmic light patterns for a customizable user experience. Users can switch between pulse modes depending on their preferred sensation. 【Smart Controller Interface】The device features a simple controller with dedicated buttons for heat, vibration, and light modes. Each function is separated clearly for easy operation. Designed to be intuitive and beginner-friendly, making it suitable for seniors or first-time users. CooCoCo Cordless Knee Massager