USB Men Electric Heating Vest Jacket Winter Warm Heated Pad Winter Body Warmer-LCategory: Element Mens VestFeature:- Adopted composite fiber heating material, which is heat-resistance, wear resistance and can warm up rapidly.- Soft and warm inner fabric offers you great comfort.- Three gears temperature control, red led for high gear, blue led for middle gear, green led for low gear.- It uses the medical acupuncture and moxibustion therapy that mainly aim to the acupuncture points treatment to dredge meridian, enhance lymph circulation, blood circulation, promote metabolism.- It also has the infrared function which is effective to human body and pain relief as well as for bacterial killing.- It is flexible, washable, and can easily be worn with your daily attire.Specifications:Input: 5VColor: BlackPackage Weight: approx. 300gMaterial: Polyamide fibre+NylonVest Size: L, XL, 2XL, 3XL(Optional)Applicable ambient temperature: -30 to 15℃Physiotherapy place: Shoulder/Back/Kidney/WaistTemperature: 50℃ (Red LED), 40℃(Blue LED), 30℃(Green LED)Package Include:1X Heated VestKindly Note:Cleaning instructions: 1. Could be washed not only by machine but hand. 2. Please do not wring it out by hand.Note:Power Source: Using an extral power bank to power onThe heated vest does not include power bank, you need to buy it yourself.