DETAILS 1. This Blutetooth version has 5 Temperature Levels (35 to 55 °C) - RED - 55°C - GREEN - 50°C - PURPLE (45°C/113℉) - BLUE - 40°C - YELLOW - Low 35°C 2. Bluetooth Capability with App 3. 17 Heating Zones - high-performance carbon fiber heating pads. 4 - USB Powered - Works with any portable 5V / 2.1A power supply 5. Machine Washable - Soft, light, quick-drying, easy to wash by hand/machine (advisable to put in laundry bag) 6. Great for motorcycling, hiking, camping, snow sports! Note: Battery pack NOT included. You will have to supply your own.