1. CONNECTION SETTING USAGE This device has no battery and is not rechargeable. It operates only when plugged in. Power is supplied by plugging into any USB port. To turn on or off, perform a long press. To switch modes, perform a short press. A timer auto offs after 20 minutes. Use for 15-20 minutes, 3 times per day. You may see results in as early as 3 WEEKS. 2. RED & INFRARED HAND WRIST WRAP Flexible wraparound design for near infrared and red light therapy on the hand and wrist. Provides relief, supports recovery, offers warmth, and is suitable for long-term use to help address hand, wrist, and finger discomfort or issues. 3. FITTED HAND WRISTS DESIGNED Smaller, lightweight, compact, and convenient to wear on the hand and wrist. Note: it must be connected to power to operate. Press and hold for 2 seconds to turn on/off. The red and infrared hand wrist wrap belt helps with hand, wrist, and finger discomfort. 4. CARE & SUPPORT HAND WRIST Suitable for activities such as holding a baby often, or prolonged mouse/keyboard use. The inner lining features comfort plush and a surface embedded with 48 dual chip LEDs. Each LED comprises 1 red light (660 nm) and near infrared light (850 nm) diodes. Three mode options: 100% intensity red and infrared light, 50% intensity red and infrared light, and 10 Pulse plus 660 nm and 850 nm. Bendable and flexible hand wrist wrap auto offs after 20 minutes. 5. STURDY DURABLE AND WELL DESIGNED Includes a convenient fixed thumb hole that better fits the wrist curvature. Universal power jack (USB-Type C) is compatible with a variety of power source devices. Luxurious crystal fluffy inner lining that is skin-friendly and comfortable.