Feature: Real laptop style keys with an extendable stand for easy viewing. Multifunction design: Micro USB keyboard phone case and bracket. Generic micro USB Keyboard and Leather Case Pouch Cover for cell phone. Light weight compact easy to carry and handle. High quality PU leather material dirt / bumps / scratch resistant. Fit each port and button position accurately. Unique folio design prevents scratches while allowing easy access to all ports. Built-in stand securely holds your tablet in a perfect angle for typing or watching movies. Perfect and convenient for business working. Reminder: To ensure the keyboard use successfully please connect the bluetooth firstly. How to connect bluetooth? a) Turn on bluetooth function on mobile phone press the connection button on keyboard. b) Input the connection code on keyboard. c)Press the "Enter" key to connect. Specification: Comply with Bluetooth 3.0+HS standard; The use distance can reach more than 10M. Modulation method: 2.4GHZ Working voltage: 3.0-5V Working current<4.0MA Standby current 20UA Sleep current<2A Charging current 100mA. Standby time is 100 days The button life can reach 5 million times. Operating temperature: -10 - +55 degC Humidity: 20%-50% The keyboar fit for IOS; ANDROID; WINDOWS universal. includes: 1 x Bluetooth 3.0 Keyboard 1 x PU leather case 1 x Data cable