iKross 2.4 GHz Wireless Rechargeable Mouse with Built-in Bluetooth 3.0 Speaker with Microphone - Black/Blue Mouse use wireless 2.4 GHz protocol, Speaker use Bluetooth 3.0 protocol. You can use it at the same time, because they won't interfere with each other. Plug 2.4G USB dongle into USB port on your computer, the mouse will connect automatically to your computer, no need driver, plug and play. Compatible with Windows XP / VISTA / Windows 7 / Windows 8 / Mac OS. Speaker function compatible with most Bluetooth-enabled smartphones, tablets, and laptops. Built-in microphone for hands-free phone calls via bluetooth connection. Built-in 900 mAh rechargeable battery , can makes mouse to work for 72 hr or speaker works for 6 hr.