Feature: 1. Portable and Convenient: Enhance your learning experience with this portable controller, seamlessly integrated with the for Anki app. The controller's sensitive control keys minimize time waste, suitable for students, doctors, and gamers seeking convenience and efficiency. 2. Multi Platform Compatibility: Compatible with for Switch, for Wins, for Android, for OS X, and for iOS platforms, catering to students and gamers. Compact size at 2.9 x 1.4 inches, easily fits in your pocket for convenient on the go use. The remote accessory for maximizing your for Anki app experience. 3. Seamless Pairing: The wireless Bluetooth connectivity allows for easy switching among 4 modes: for Switch, for X input, for Mac and for keyboard mode. Each mode has unique connection methods and indicator light displays. Simply long press the "Home + A/B/X/Y" button combination to connect to the desired mode effortlessly. 4. 14 Cool RGB Lighting Modes: Featuring 15 independent LED lights with 8 vibrant colors including red, yellow, blue, green, etc. Choose from 14 RGB lighting effects, including 8 static and 6 dynamic options that can be easily adjusted using the light buttons and "A/B/X/Y" keys. Unique lighting effects to create an immersive learning or gaming environment according to your preference. 5. Long Battery Life: Equipped with a high performance 200mAh lithium ion battery with auto sleep, charging alert, and low voltage warning functions. The battery provides up to 4 to 8 hours of continuous gaming time in RGB lighting mode, ensuring uninterrupted entertainment. Specification: Item Type: Wireless Bluetooth Controller Material: ABS Battery: 200mAh Polymer Lithium ion Battery Connection: Bluetooth Compatibility: for Switch, for Wins, for Android, for OS X, and for iOS platforms. Package List: 1 x Controller 1 x USB Cable 1 x Strap 1 x Instruction Manual