[Unique Astronaut Design] This hand warmer features a cute and creative astronaut design, making it a fun and stylish accessory for winter. Perfect for both kids and adults, it adds a touch of space-inspired charm to your cold-weather gear [Dual Temperature Settings] With two adjustable heat settings: 45℃ and 60℃, you can easily choose your preferred warmth level. Whether you need gentle warmth or more intense heat, this hand warmer keeps your hands cozy [Quick Heating in 5 Seconds] Enjoy instant warmth with this hand warmer's fast-heating technology. It reaches optimal heat within 5 seconds, making it perfect for those chilly moments when you need warmth fast [Safe and Explosion-Proof Design] Designed with safety in mind, this hand warmer features a reliable explosion-proof system, ensuring you can use it with complete peace of mind in any environment [Intelligent Constant Temperature Control] The built-in intelligent temperature control maintains a steady warmth, so you don't have to worry about overheating. It keeps your hands warm and comfortable throughout the day Specifications: Product model: Y11 Battery capacity: 4000mAh Product material: ABS+aluminum alloy Rated input: 5V/2A Product power: 6W Product weight: 150g Charging time: 2h Product size: 108*80*52mm