Which of the following interface technologies lets a wireless mouse connect to a laptop or PC without the need for a physical cable?
VGA
RJ-45 Ethernet
Bluetooth
HDMI
Wireless mice transmit data over short-range radio signals rather than over a wire. The most common standard for cord-free mice is Bluetooth, which is built into most laptops and many desktops. Interfaces such as RJ-45, VGA, and HDMI all require a physical cable and are designed for networking or video-not for wireless pointing devices.
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