describe:1. Astronaut hand warmer, hug me tightly to warm you. Fashionable style, two-level speed adjustment, five-second heating. The first gear: 45, the second gear: 60.2. This electric hand warmer is not only a rechargeable hand warmer that provides you with warmth, but also a good companion for winter outdoor sports. It can also be used as a backup battery power pack and to quickly charge USB devices.3. 3 Temperature modes are adjustable and heat is released immediately within a few seconds of pressing the switch. You can choose the right height to enjoy the warmth.4. High-quality materials The portable charging hand warmer is made of high-quality ABS material, which is smooth and warm, light and compact, and non-slip with one hand. It's shockproof, anti-scald, explosion-proof, lightweight, durable and easy to carry anywhere you like.5. Reusable long-lasting hand warmer, temperature range 45-60; you decide the degree of warmth. Perfect for winter hikes or chilly morning commutes.Specification:Name: Astronaut Hand Warmer/Hand WarmerRated input: 5V/2AInput interface: USBCharging time: about 2hPower: 6W-10WAstronaut size: 116*80.5*52mm (4.56*3.16*2 inches)Astronaut material: ABS + aluminum alloyPackage Contents:1 hand warmer1 USB cable