1. CONNECTION AND SETTING: No battery, not rechargeable. Works only when plugged in. Power via any USB port. Long press to turn on or off. Short press to switch modes. Auto shutoff after 20 minutes. Use for 15–20 minutes, 3 times per day. Results may be seen in as early as 3 weeks. 2. Red Infrared Hand and Wrist Wrap: Flexible, wraparound near-infrared red light therapy device for hand and wrist relief, recovery, support, and warmth. Long-term use may help improve discomfort in hands, wrists, and fingers. 3. Fitted Design for Hands and Wrists: Compact, lightweight, and convenient for hand and wrist use. Must be connected to power during use. Press and hold power button for 2 seconds to turn on or off. Red infrared hand and wrist wrap helps relieve hand, wrist, and finger discomfort. 4. Hand and Wrist Care Support (ideal for frequent mouse use): Inner lining features soft plush material. Surface embedded with 48 dual-chip LEDs. Each LED contains one red light (660nm) and one near-infrared light (850nm) diode. Three treatment modes: high intensity red and infrared, 50% intensity red and infrared, and pulsing mode at 660nm and 850nm. Flexible, bendable design with auto shutoff after 20 minutes. 5. Durable and Well-Designed: Includes a fixed thumb hole for secure fit and contoured design that fits the natural curve of the wrist. Universal USB Type-C connector compatible with various power sources. Luxurious crystal-plush inner lining for enhanced skin comfort and softness.