This lightweight, ultra-thin foldable keyboard is designed for people whotravel frequently. It is suitable for your laptop and bag. Replacement for smartphone, tablet, laptop, Apple iPhone, iPad, Mac. Features: This keyboard provides fast, accurate typing, feels like those regularstandard keyboard you are accustomed to. Foldable, lightweight, compact design, easily fit into a bag or pocket. Letsyou take it wherever you go. The built-in rechargeable battery provides up to several months of usage on asingle charge. Replacement for IOS, Android Windows phone smartphone, tablet, laptop, AppleiPhone, iPad, Mac. Specification: BT version: BT3.0 Effective range of operation: Within 10 meters Modulation method: GFSK Working voltage: 3.2-4.2V Charging time: 2 hours Battery capacity: 80mAh Working hours: 40 hours Battery life: 3 years Support system: iOS/Android/Windows Item size: 10.5 * 8.3 * 0.9cm / 4.13 * 3.27 * 0.35in(L * W * H) Item weight: Approx.131g / 4.62oz Package size: 17.5 * 10.5 * 3.3cm / 6.89 * 4.13 * 1.30in(L * W * H) Package weight: 189g / 6.67oz Package list: 1 * Folding keyboard 1 * USB cable 1 * User manual