Features: 1. Comfortable Heated Seat Cushion: Add more comfort to your seat while driving, working at a computer desk, or sitting at the dining table. This heated chair pad will give you enough warming during a long time sitting. Whether you need pain relief or warmth in winter, it is the best option. 2. Fit Universally: 18×18 inches, the heated seat cushion nicely fits most standard types of seats and chairs, and can be placed on dining desk chairs, sofas, office chairs, gaming chairs, wheelchairs, and rocking chairs. 3. Quickly Heating: Three-levels temperature adjustable (45, 55, 65), when it reaches what you chose, the chip will automatically stop increasing and constantly keep the temperature you want. 4. USB Powered: The USB connector can support 5V/2A, and can be powered by a power bank, computer, car, etc. 5. Safe To Use: Built-in overheat, over-voltage, and short circuit protection modules, and an overtime power-off function. Specification: Material: Crystal Velvet Product Color: Grey, Brown, Black Product Size: 45 x 45cm Product Weight: 450g 3 Temperature: 45, 55, 65 Voltage: 5V Power: 10W Package Included: 1 x Heating Seat Cushion with USB Cable