This versatile heated shoulder and knee brace is designed for comfort and convenience, it features four temperature settings, USB-powered heat, and a mesh pocket. Features: Adjustable Fit: Fully adjustable strap ensures a secure and comfortable fit for both shoulder and knee use USB-Powered : Plug-and-play with USB power (adapter not included), eliminating the need for batteries Multi-Temperature Settings: Choose from four temperature levels (Preheat, Low, Medium, High) with easy LED controls Built-in mesh pocket allows insertion of an ice pack(ice pack not included) User-Friendly LED Interface: One-key start with color-coded LEDs for temperature modes: Preheat (Fading Red): Up to 30 degrees Celsius Low (Blue): 35–45degrees Celsius Medium (White): 45–55degrees Celsius High (Red): 55–65degrees Celsius Specifications: Material: Polyester Fiber Colour: Black Size (LxWxH): 58 x 18 cm Shoulder Strap Length: 33 cm Fits Arm Circumference: Up to 40 cm Fits Chest Circumference: Up to 110.5 cm Power Supply: USB Direct Plug-in (Type-C Port, Adapter Not Included) Package Contents: 1 x Heated Shoulder Brace 1 x Adjustable Strap 1 x USB Cable Please Note: Manual measurements may have slight variations Lighting and angles may affect how colours appear in photos How to Avoid Low-temperature Burns: 1. For special populations such as infants, the elderly, and diabetes patients, patients and caregivers should increase their understanding of relevant knowledge. 2. When using heating devices, please carefully read the user manual. 3. Avoid