Features: Rapid heating: Utilising advanced carbon fibre, it achieves quick temperature elevating within a short timeframe, effectively alleviating muscle soreness and joint discomfort. Temperature control: Features multiple adjustable heat settings, allowing personalised temperature customisation for a comfortable experience. Convenient USB Power Supply: Compatibles various USB power sources such as power banks and computers, eliminating the need for additional power sockets for effortless use. Multi-Purpose Design: Suitable for lumbar support, knee protections, and seat cushion applications, catering to diverse heating requirements across different body areas. Ideal for home, office, and outdoor settings. Lightweight and Flexible: Lightweight and soft construction conforms to the body's contourings, facilitating prolonged use without hindering daily activities. Specifications: Item：USB Heated Pad Component:: Carbon fiber Size about 10x15cm/3.94x5.09in 10x22cm 20x30cm Suitable for lumbar support, knee protections, and seat cushion application Package Includes: 1PC USB Heated Pad note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.