Built-in Boost, Stable Output. • Powered by built-in 2000mAh battery, Boost 2 serves long and supports up to 60W stable output. • Stable Output Buck-boost Tech, optimize power to create consistent flavor performance even when the battery is running out Leakproof for New Boost. 0.96-inch Curved Display. AS-Chip 3.0, Intelligent Working Modes. New Tri-proof, IP68-rating. A-lock.