Searching for a really lightweight, compact, and portable external battery? This is exactly what you are looking for! Poweradd - Power your life Poweradd Ultra Slim portable charger is especially designed for customers who prefer a ultra-compact, lightweight charger. High quality, Safety, Convenience, High Speed Charging? All included! SMALL BUT FULLY EQUIPPED, that's Poweradd Slim2. Quick Charging Time Designed with 2.1A output current, provide the fastest charging speed up to your smartphones, tablets and more. 2A unique input design use a 2.1A adapter for fastest charging time, twice as faster than 1A input. Compatible model: Most models of Apple and Android smartphones, and most other 5V USB-charged devices Features: Eye-catching, stylish appearance: pocket-sized, ultra-compact design provides a unique experience. 5000mAh capacity with grade A cell, it may be a necessary evil to keep your phone active for as long as possible. LED display lights indicate the charge and discharge status instantly. Extremely compact and slim design is convenient for portability while traveling. Poweradd is your perfect, on-the-go, go anywhere, power source. Specification: --Battery Type: Li-ion battery --Capacity: 5000mAh --Life Cycle > 500 Times --Input: DC 5V / 2A --Output: DC 5V / 2.1A --Size: 3.93 x 1.27 x1.20 inches; Weight: 4.40 ounces Industry-leading warranty Here at Poweradd, we provide 24 months limited product warranty and 24*7 friendly customer support for any purchase from us. Use Tips 1. Fully recharge your Slim2 before first use to activate the battery. 2. Use the included cable, your original cable or a third-party certified one.