?Ultra-Thin Silent Wireless Keyboard and Mouse?RATEL Wireless keyboard with 0.8 inch ultra-thin full sized design, save space and be easy to carry. And the advanced scissor switch whisper-quiet keys design and silent click mouse, shows your love and care to your surroundings especially in library, coffee shop or late work at night. ?Stable 2.4G Wireless Connection?RATEL wireless keyboard mouse use 2.4G wireless connection technology, powerful and reliable connection up to 10m(33 feet) without any delays. One plug and play USB receiver (stored inside of the mouse) can connect both the keyboard and mouse without installing any additional software, ensures a strong and reliable connection. Just plug it into a USB port and you’re ready to go. ?19 Multimedia Hot Keys Wireless Keyboard?19 multimedia hot keys easily access to music, volume, internet, e-mail and other multimedia, let you quickly and easily achieve the operation you want.(Note: some shortcut keys are not available in Mac system). ?Auto sleeping & 3 Levels Adjustable DPI?RATEL wireless keyboard and Mouse combo are characterized by energy-saving design. Inactive within 30 minutes, wireless keyboard and Mouse will trigger auto-sleeping mode. Press any keys to wake keyboard and Mouse up. DPI of the wireless mouse is adjustable from 800-1200-1600 to meet your different your needs. ?Universal Compatibility & Great Customer Service?: Compatible with Windows 2000 / ME / XP / Vista / 7 / 8 / 10. Work well with desktops, Chrome-book, PC, Laptop, Computer and more. RATEL 24 hours stand-by professional customer service promise to give you a satisfied solution and every RATEL products with 12-Months warranty. The keyboard need 2 x AAA battery and mouse need 1 x AA battery (not included).