1. Three heat levels: 48°C, 53°C, and 58°C, effectively relieve wrist pain.Three vibration modes: Mode 1 for daily care, Mode 2 for exercise, and Mode 3 for wrist discomfort, meeting different vibration needs. 2. 15-minute smart timer for use and prevents overuse. 3. Touchscreen button: and hold for 3 seconds to turn the wrist guard on and off for easy operation. 4. securely fastens the wrist guard for both hands. 6. Effectively treats wrist pain, tenosynovitis, mouse hand, and handache. Instructions: 1. With your palm facing inward, place the wrist guard on the outside of your hand (with the front of the wristband facing inward). Insert your thumb through the eye in the band and wrap it around your wrist. 2. and hold the power button for 3 seconds to turn on the product. 3. the left vibration button briefly to select from 3 vibration modes. 4. and hold the right heat button briefly to select from 3 heat levels. 5. and hold the power button for 3 seconds to turn the product off. Color: As Shown Material: OK Cloth+Composite Cloth+Cotton Package Contents: 1*Wrist Support 1*Instruction Manual 1*Charging Cable 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.