Features: 【3-mode Precise Heating + 3 Vibrating Modes】Adjustable temperatures of 48°C/53°C/58°C provide rapidly relief for wrist soreness; 3 vibrating modes switching as needed. 【15Minute Smart Timer + Safety Protections】Built-in smart timer automatically shuts off after 15minutes to prevent skin damage from overheating. 【Convenient Operating + Universals Design】Sensitive touch buttons allow power on/off with a 3-second press, and intuitived mode switching. High-elasticity hook-and-loop fasteners stay securely in place without slipping, offering adjustable tightness. Suitable for both hands and accommodates various wrist sizes. 【Dual-Function + Multi-Use】Serves as both a wrist and ankle brace—one device, two uses . 【Comfortable + Targeted】Made with soft, friendly fabric that's breathable and sweat-wicking, ensuring without pressure or discomfort during extended wear. Specifications: Ingredients: diving cloth and 3% composite cloth Lining: flannel Voltages: 3.7V Power: 7.5W Input: 5V 1A Color: black Battery type: polymer battery: independently 1 Battery model: JB103450 Battery capacity: 2000mAh Charging time: about 2 hours Full charging time: a little more than 1 hour (4-5 times) Charging light: white lighting flashes, fully charged, white lighting stays on Package Includes: 1/2pieces of wrist guard note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution