Wireless Black Keyboard and Mouse Combo, Low-Profile Silent Click

* 【Multi-Device and Multi-OS】Both keyboard and mouse are fully multi-device and multi-os friendly for powering through projects on 4 devices at the same time --- driver-free, plug and play.【The USB receiver is located in the battery compartment on the back of the mouse】 * 【Reliable Wireless Connectivity】Featuring 2.4GHz/Bluetooth 5.0/4.0, this wireless keyboard and mouse combo open up new ways to type on your PC, tablet, phone or a second computer. * 【Adjustable DPI】Includes optical 800/1000/1200/1600/2400 resolution mouse for silky prominent movement on different sized displays. * 【Silent Click and Dual System Hotkey】The low-profile chiclet scissor keys provide comfortable, quiet typing experience for hours at your desk; Support Windows and Mac OS dual system shortcuts to 12 widely used functions keys like play/pause, volume+/- and more. * 【Refined Details from Customer Voice】The latest version has added device and capitalization indicator lights for making it easier to find which device you are typing on, and eliminating the inconvenience caused by not knowing the uppercase or lowercase; The Bluetooth 5.0/4.0 is upgraded from Bluetooth 5.0/3.0 in order to extend battery life, what’s more, we’ve also replaced the alkaline batteries with name brand ones for prolonged use.