Feature: 1. WIDE APPLICATION: Mainly used to warm shoulders, neck, waist, back, abdomen and cushions or pet beds. The product needs to input DC 5V to be heated, and needs to be in a thermal insulation environment 2. TECHNICAL PARAMETERS: This USB heating pad is 10x20cm, heating temperature from 30‑60 degrees Celsius, and four speed adjustable 3. PET OR HUMAN PAD: Can be used as pet pad, office pad heating, etc. Lightweight and easy to carry, very convenient 4. FAST HEATING: Portable heating pad, safe and easy to use, can be fastened around sewing, the temperature inside the jacket will continuously increase with the heating time, usually reaches the desired temperature in about 10 minutes 5. PAMPER YOUR NECK AND RELIEVE FATIGUE: Neck heating pads relieve neck pain, bendable, washable, take up no space, heat quickly and maintain high temperature Specification: Item Type: Electric Cloth Heater Pad Material: Carbon fiber Supply Voltage: DC 5V Product Size(without wire): Approx. 10 x 20cm / 3.9 x 7.9in Temperature: Strong Temperature: 60 Degrees Celsius, High Temperature: 50 Degrees Celsius, Medium Temperature: 40 Degrees Celsius, Low Temperature: 30 degrees Celsius (four gear adjustable) Timing: 15min, 30min, 45min, 60min. Package List: 1 x Heating Pad1 x Thermostat Note: Please allow tiny size error due to manual measurement. Please take the real one as standard.