The folks at SparkFun were startled by how small USB bluetooth adapters had become so they split one open. They noted a few interesting design features. It has a small folded trace antenna on the ...

The best Bluetooth car adapters ... design, wireless audio quality and ease of use. We also awarded extra points for any special features, such as a connection to Alexa or a USB charging port.

A USB-based device that transmits and receives Bluetooth wireless signals. It plugs into the USB port to support Bluetooth mice, keyboards and other Bluetooth devices. Also called a "Bluetooth ...