Electric heating foot warmers use the latest heating and vibration technology. Effectively relieves tension, stiffness, soreness and cramps. Protect your feet from poor circulation, arthritis and cold floors. ULTRA-SOFA FLANNEL: The foot warmer is made of super soft flannel on both sides, which is very durable and warm. The soft thick flannel cover keeps the heat inside the pad to keep you warm. Multiple Uses: 3 Settings: Heat, Vibrate, Heat and Simultaneous Vibration. Non-slip bottom material, USB power supply, no matter at home, office or in the car, it can be used as a hand warmer or a travel pillow. 45 minutes automatic shutdown to prevent overheating. Easy to Use - The Foot Warmer Massager is lightweight and portable, allowing you to relax on the sofa, bed or chair in the office or at home. The perfect holiday, birthday, Christmas gift for mom, dad, friends or anyone you love. Foot is the second heart of the human body. Foot is the root of the human body and the foundation of health. Each electric foot warmer has undergone strict safety testing and strict process control. Please use it with confidence. 45 minutes automatic shutdown to prevent overheating. Color: Grey | Dimensions: 14.2 x 12.2 inches Mode: One-click operation, easy to use. 3 function settings. Long press the switch to turn it on or off. Change function every time. Red - Heat only. Blue - Vibrate only. Green - heating and vibration. Power supply: USB power supply, 5V, 2A power supply is recommended. (not included) Item cannot be charged and requires a USB connection adapter.