Features: Adopt BT 3.0 chip for fast pairing, 10m wireless transmission distance, no messy cables anymore.  Ultra-thin body, high sensitivity and good tactility, comfortable typing experience. Ingenious folding design, easy to carry, convenient to use.  Scissor type keyboard, lightweight and slim, quiet keystroke, good feeling.  Compact layout, with multi-function keys, good operating performance.  Powered by rechargeable lithium battery, low power consumption, long endurance time.  Wide compatibility, compatible with Android/iOS/Windows system, suitable for mobile phone, tablet and laptop with BT function.   Specification: Name: Foldable BT keyboard;  Color: Silver/Gold(optional);  BT version: V3.0;  Working distance: 10m;  Battery capacity: 152mAh;  Charging time: 3 hours;  Working time: 60 hours;  Working current: <1.73-3.46mA;  Standby current: 0.07-2.53mA;  Sleep current: <76uA;  Supported system: Android, Windows, iOS;  Item size: 14.8 * 8.5 * 1.5cm /5.83 * 3.35 * 0.59in;  Item weight: Approx. 189g /6.67oz;  Package size: 15.6 * 11.5 * 2.9cm /6.14 * 4.53 * 1.14in;  Package weight: 300g /10.58oz;   Packing list: 1 * Keyboard;  1 * Charging cable;  1 * Phone stand;  1 * User manual