Adafruit Medium Surface Transducer with Wires - 4 Ohm 3 Watt

Turn any surface/wall/table etc into a speaker with a surface transducer. This type of speaker does not have a moving cone like most speakers you've seen. Instead, a small metal rod is wrapped with the voice coil. When current is pulsed through the coil, the magnetic field causes a piece of metal to expand and contract - and if it's pressed against a surface it turns the transducer into a speaker!

Often these size transducers are pressed up against a flat surface to turn it into a sounding board. The effect is a surprisingly clear sound that comes from the surface itself. The body of the transducer is heavy so that it can be placed with the rubber top down on a table. And for another fun trick, put the transducer at the end of a large plastic cup to point sound in a particular direction.

Dimensions:

* Height: 27mm / 1.1" * Diameter: 28mm / 1.1" * Length of Wires: 115mm / 4.5" * Weight: 74g Specs:

* Impedance: 4Ω * Power rating: 3W