Stiff joints, aching knees, and post-workout fatigue can easily slow down your daily routine. Whether you are an active runner, someone spending long hours on your feet, or dealing with chronic joint stiffness as you age, your knees deserve targeted care that goes beyond a basic heating pad. The ZN-KM02 is engineered to bridge that gap, combining professional-grade phototherapy with deep-tissue mechanical relief in a fully wearable, cord-free design.

Instead of relying solely on surface warmth, this device utilizes advanced dual-chip optical technology featuring 60 integrated lamp beads. It blends 660nm visible red light, which focuses on surface tissue care and cellular comfort, with 850nm near-infrared light, which penetrates deeper into the fascia and muscle layers to stimulate localized circulation. Paired with customizable vibration frequencies and multi-level thermal control, it delivers a comprehensive recovery session right in the comfort of your living room.

The core of the ZN-KM02 lies in its precise wavelength delivery. The 660nm red light targets the epidermis to support skin vitality and surface relaxation, while the 850nm near-infrared light reaches deep beneath the skin to soothe deep-seated muscle tension and joint fatigue. This synergistic light delivery helps warm up stiff joints quickly, making it an ideal pre-workout companion or a soothing evening wind-down tool.

Every body responds differently to recovery therapy, which is why this device offers extensive customizability. Users can choose from multiple operational intensities:

• Red Light & Pulse Modes: Ranging from P1 (Gentle Relaxation) and P2 (Balanced Comfort) to P3 (Intensive Soothing), along with specialized pulse frequencies (P4 at 10Hz and P5 at 40Hz) designed to stimulate tissue responsiveness without discomfort.
• Vibration Levels: Four distinct vibration settings (Level 0 Off, Level 1 Gentle for daily relaxation, Level 2 Soothing for muscle recovery, and Level 3 Powerful for deep relief) allow you to tailor the mechanical massage intensity to your exact preference.
• Thermal Regulation: Adjustable temperature ranges from 40°C to 65°C ensure steady, soothing warmth that penetrates deep into the joint cavity.

While optimized as an ergonomic knee brace featuring contour-hugging curves and secure dual-strap fastening, the ZN-KM02 is truly multi-functional. Thanks to the included extension strap, the unit can be easily reconfigured and secured to other hard-to-reach areas, including your shoulders and elbows, providing all-around upper and lower body support.

Tethered wall plugs and tangled cords limit your mobility when you need relaxation the most. Equipped with a robust, built-in 5000mAh rechargeable lithium battery, the ZN-KM02 liberates you from electrical outlets. Enjoy cord-free convenience whether you are working at your desk, reading on the sofa, or traveling. A sleek digital display panel lets you monitor battery status, active heating levels, and operational modes at a glance.

1. Position the main wrap securely around your knee, elbow, or shoulder, ensuring the optical window makes direct contact with the treatment area.
2. Fasten the primary Velcro strap snugly, then adjust the secondary strap or extension band for a firm yet comfortable fit that does not restrict circulation.
3. Long-press the power button to turn on the device, select your desired thermal level, red light intensity, and vibration mode via the digital control panel. Sit back and let the device run through its automated session.