Feature: 1. ADJUSTABLE TEMPERATURE: The heated sleeping bag has a heatable warming function that provides extra warmth. Three levels of temperature can be freely adjusted to ensure even temperature distribution and a comfortable feeling, effectively protecting your body from the cold. 2. MATERIAL: The heated sleeping bag is made of polyester, which is soft and provides you with a comfortable using experience. At the same time, this material is wear proof and has a long service life, durable. 3. CONVENIENT USB POWER MODE: The heated sleeping bag adopts USB power mode, using 5V2A safe voltage. Users can use it anytime and anywhere, just need to connect to the available USB power supply, simple and convenient. 4. ELASTIC CORD DESIGN: The heated sleeping bag is equipped with an adjustable elastic cord, which can be tightened to the neck when tightened, effectively preventing the cold wind from pouring in, preventing heat loss and providing better warmth. 5. WIDELY APPLIED PLACES: The heated sleeping bag is suitable for many places, including hotels, train sleepers, outdoor camping, hiking, self driving tours, business, fishing, home life and so on. Specification: Item Type: Heated Sleeping Bag Material: Fluffy Cotton, Polyester Weight: Approx. 1191g / 42oz Color: Camouflage Blue. Package List: 1 x Heated Sleeping Bag1 x Storage Bag