The transmitter and receiver For the transmitter, he turned an Arduino Pro Micro into a USB sound card which he could plug into his laptop. That outputs both the audio signal and a 40 kHz carrier ...

The EVE II Bluetooth Transmitter and Receiver bridges that gap with a range of features that allow you to add Bluetooth to ...

Bluetooth tech with wireless capabilities when you get the EVE II Bluetooth Transmitter & Receiver for $42.97. Give new life to your older tech when you use the EVE II Bluetooth Transmitter & Receiver ...