Features The sleeping bag allows you to warm up in seconds by using a special metal fiber heating element when you connect to the power banks when you feel cold in the existing sleeping bag. The product can be used both indoors and outdoors. Electric Heating Pads: The 5-piece heating pad system is compatible with any 5V/2A USB power supply of mobile phone charger phone power banks car charger and others. 5 heating pads can warm the shoulder back hip and foot area. Temperature Control: Three temperature settings are optional via a single button so you can choose the comfortable temperature you prefer to ensure a better sleep. Skin Friendly cotton and polyester fabric: Skin-friendly cotton and polyester fiber fabric keeps you warm and anti-slip and cold insulation fabric on the back. Multiple uses: the heated sleeping bag is good for sleeping at home office backyard car motorhome mountains and beach. Notice: Actual color may be slightly diffent from the image due to diffent display and light effect. Please allow 1-3cm deviation due to manual measument. Description: Size: 198x61cm Material: Polyester+cotton Accessories: 1 storage bag includes: 1 Set Heated Sleeping Mat "