【Wireless Bluetooth keyboard】 Standard Bluetooth 3.0 connection technology, effective control distance of 10 meters. For desktop computers without Bluetooth function, an additional receiver is required (not included in the product. | 【Compatibility】 No matter which Bluetooth device is used, the product supports multiple systems, Android, IOS, Windows. It is suitable for Apple iPad mini, iPad 9.7/10.2/10.5/10.9/11/12.9 inches, iPhone, Samsung Galaxy Tab, Macbook, Surface pro, desktop computer. | 【Long standby】 The product adopts 2.4G Bluetooth low energy design, independent switch button, during Bluetooth operation, no button is pressed for 10 minutes, automatically enters sleep mode, low power consumption, long battery life, built-in recycle Rechargeable lithium battery, it can be used continuously for 90 hours when fully charged, and standby for more than 180 days. | 【Product charging】 The product is equipped with a micro-USB cable. When using it for the first time, it is recommended to charge it for more than 2 hours to ensure the battery life. When the CHARGE red indicator light flashes, it means that the battery is low. Please charge it in time to ensure the keyboard is used normally. | 【Product after-sales service】Dear users, our products are strictly tested before they leave the factory. Has obtained FCC, BQB, ROHS, CE international certification, users can rest assured to buy. From the date of purchase, you will enjoy a 12-month warranty and 24-hour customer Q&A service, making shopping easy. If you have any questions before buying, you can ask questions about our products, and hope that your questions and answers can make our products better.