The Anker Advantage: Join the 6 million+ powered by Amazon ‘s #1 charging brand. Exclusive PowerIQ Technology: Detects your device to deliver its fastest possible charge speed up to 1 amp. High Capacity: Add one and a half charges (over 7 hours talktime) to an iPhone 5s, almost one full charge to a Galaxy S5 or one full charge (70+ hours of audio playback) to most other phones. Ultra Compact: Our original lipstick-shaped aluminum design (3.5 × 0.9 × 0.9in, 2.7oz). Recharges in 3-4 hours with a 0.8 amp adapter (not included) and the included Micro USB cable. What You Get: Anker 2nd Generation Astro Mini 3200mAh External Battery, Micro USB cable, travel pouch, welcome guide, our fan-favorite 18-month warranty and friendly customer service.