Including: Bluetooth keyboard+leather case+data cable Compatible with 4.5-6.8 inches (width of 6-9.5 cm) Bluetooth phones, including Android Expossed magnetic keyboard tray turn the keyboard cover into a classic investment portfolio CAS At the time of falling, the high -grade PU leather protection can provide durable, sturdy shockproof pads, plastic keyboard dust, scraping, drug resistance, high performance and high quality Bluetooth: 3.0 + HS standard Modification: 2.4GHz Working voltage: 3.0-5V Work current: <4.0ma PU leather shell size: about 23 x 13.5cm/9.1 x 5.3 inches Keyboard size: about 12.5 x 20cm/4.9 x 7.9 inches Applicable Model: The mobile phone screen 4.5-inch-6.8 inches (or 6-9.5cm mobile phone width) All Android or Apple systems with Bluetooth function mobile phones. Instructions for use: Step 1: Open the on/off button Step 2: Press the Connect key often. At this time, the indicator light of the Bluetooth logo will flash Step 3: At this time, turn on the Bluetooth switch of the phone, search Bluetooth device, and the default name of the keyboard leather case is Bluetooth 3.0 Keyboard Step 4: Platform or mobile phone click Bluetooth 3.0 Keyboard, click pairing to connect successfully