Using tips : Press fn+BT1 bluetooth button to switch channels ,and the bluetooth indicator light will turn on ,entering the BT1 bluetooth mode.Press Fn+c again for 3 seconds ✔️ Product Features: 【Compact and Portable】: The folding design reduces the width of the fuselage to 55mm. 【with leather material cover】: The keyboard shell is made of aluminum alloy oxidation process, which is durable, has a texture and highlights the fashion atmosphere 【Smart Switch】: Magnetic induction. Open the keyboard cover to turn on the keyboard power. Close it to sleep automatically. Fn+c can turn on Bluetooth-compatible pairing, which is faster. 【Strong Compatibility】: Support for Windows, for Android, for I0S mobile phones or tablets. ✔️Specification: Bluetooth-compatible: Bluetooth-compatible 5.0 Material: ABS alloy+leather Number of keys: 78 Battery: 180mAh lithium battery Support system: Support Windows, Android, I0S mobile phone, tablet PC Color: Black/Gray/Silver/Gold/Rose Gold (optional) Folding size: About 253x181x6.85mm Unfolded size: About 253x61x21mm Product weight: 200g Package size: 350g ✔️Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. ✔️What will I receive? 1 x Keyboard 1 x Charging cable 1 x Instructions