Features: 100% brand new and high quality Advanced Bluetooth-compatible technology provides a cable-free connection with an operating range of 10 meters. But for Desktop PC Laptop without Bluetooth-compatible function, you need to insert a third-party Bluetooth-compatible adapter (not included) to install Bluetooth-compatible driver before use. The universal wireless Bluetooth-compatible keyboard uses built-in lithium battery, can be easily recharged through USB cable, no need to change the battery. The Bluetooth-compatible wireless keyboard can automatically enter into sleep mode in order to save energy. The whisper-quiet, low-profile keys bring a whole new level of comfort to your fingertips. Besides, keep all your most-used functions and media controls closer than ever Windows-dedicated hot keys. This lightweight Bluetooth-compatible keyboard is designed for anyone who needs a portable capable keyboard for work or play and especially suitable for business travel. Use with all four major operating systems supporting Bluetooth-compatible (iOS, Androids, Mac OS and Windows) ,Compatible with iPads, iPhones and Bluetooth-enabled Tablets, Laptops, and Mobile Phones, such as iPad air , iPad mini, iPad Pro, iPhones Xs Max etc.(Devices without Bluetooth-compatible need to buy a Bluetooth-compatible receiver by themselves) Package Includes: 1x Bluetooth-compatible Keyboard 1x USB Cable Specifications: Material: ABS Color: White / Black Power: 150 mA Built-in Battery Connect way: Wireless Transmission Distance: 10m Size: approx. 25x15x0.5cm / 9.84x5.9x0.19in note: Instruction: Step 1: Turn on the ON/OFF key. Step 2: Press the CONNECT button for a long time, the Bluetooth-compatible indicator will flash. Step 3: Turn on the tablet Bluetooth-compatible switch, and then search for Bluetooth-compatible devices. Step 4: Click the Bluetooth-compatible 3.0 keyboard connection on the tablet or phone. Due to the lighting effects and shooting angles, there is color difference in the product, please understand. Due to manual measurement, there is a tolerance in the product size.