This USB heating pad measures 20x10cm with a heating temperature range of 35-45 degrees Celsius. It is safe, lightweight, and easy to use. Designed for warming the shoulders, neck, waist, back, abdomen, cushions, or pet beds. The pad is portable, bendable, and can be hand washed. Features: - Ideal for use on shoulders, neck, waist, back, abdomen, cushions, or pet beds - Compact size: 20x10cm (7.87x3.94 inches) - Operating temperature: 35-45°C - Lightweight and portable design - Safe for everyday use - Can be secured in place when sewn into fabric - Flexible and foldable construction - Water-washable (hand wash recommended) Specifications: - Material: Carbon fiber - Color: Black - Maximum voltage: 5V - Power source: USB - Heating area: 20 x 10cm / 7.87 x 3.94 inches - Cord length: 1.2m / 47.24 inches - Heating temperature: 35-45°C Usage Instructions: 1. Connect to a computer’s USB port, power bank, or a 5V 2A power adapter. 2. Place the heating pad inside a quilted jacket, towel, or insulated material (folded or flat). For temperature testing, place a probe directly on the pad. 3. Once powered, the temperature will gradually rise. Expected heat level is typically reached within approximately 10 minutes. Note: - Do not operate the heating pad in open air or on bare surfaces without insulation, as heat dissipation may occur. - Optimal performance is achieved only when used within an insulated environment such as between layers of clothing or bedding. - When properly insulated, the pad reaches 40-45°C after 20-40 minutes of use. - If the connected USB port does not provide sufficient current (minimum 2A), the device may not activate. - Some power banks or adapters may cause the device to shut off automatically after about 10 minutes due to insufficient output power. A compatible 5V 2A power supply is recommended. Applications: - Insert into clothing for personal warmth - Use in pet bedding for cats or dogs; ensure proper insulation to maintain warmth - Wrap around solid objects with an outer layer of foam or insulating cotton to reduce heat loss Package Includes: 1 x USB Heating Pad