Feature:1. Rapid Heating: The back electric heating pad heats up evenly, rapidly heating up, and the heating wires are distributed to provide average heat.2. 6 Levels: Plush heating pad has 6 levels of temperature adjustment, the heating pad will automatically stop heating when it reaches the target temperature to ensure safe use.3. Soft Material: Electric heating pad is made of super soft fabric, soft fit and more comfortable, bringing you a different experience, and detachable and machine washable, easy to clean.4. Multifunction: Heating pad relieves cramps, chronic ache, muscle tension and soreness with heat therapy and can be used to cover your back, neck, shoulders, arms and legs and more.5. Elastic Straps: This heating pad offers elastic straps that allow the heating pad to wrap around your shoulders, waist, arms or legs, and features a dustproof drawstring pocket for easy storage or portability.Specification:Item Type: Back Electric Heating PadMaterial: Crystal Super SoftTemperature Setting:Warm Temperature Range: (-40/104F)Low Temperature Range: (-45/112F)Medium and Low Temperature Range: (-48/119F)Medium Temperature Range: (-52/126F)Medium High Temperature Range: (-56/133F)High Temperature Range: (-60/140<F)Time Setting: Level 4 Time is Set at 30-120 Minutes for Energy Saving and Safety.Package List:1 x Back Electric Heating Pad1 x User Manual