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

But for a weekend project, [Vinod.S] took the ultrasonic transmitter and receiver ... consisting of the ultrasonic receiver, followed by a transistor amplifier for the modulated wave, then a ...

The Maxell Sound Bar does a lot of things right, from design to voice capture, but ultimately underwhelms due to its ...

[GreatScott] does exactly this in the video after the break, building both a transmitter and receiver ... when combined with a simple microphone amplifier circuit. But this time the receiving ...