The usbbt1edr2 usb to class 1 bluetooth adaptor with edr is a micro sized adaptor that adds bluetooth capabilities to a computer through an available usb port this makes it possible to connect to devices wirelessly at ranges up to 100m 328 feet with minimal power consumption the usb bluetooth adaptor supports the bluetooth v21 specification along with enhanced data rate edr for transfer rates up to 3 mbps the adaptor uses a small form factor design that makes it conveniently portable and uno