Product: Generic Large Surface Bone Conducting Transducer Exciter with Wires 45mm 4 Ohm 5w
Brand: Generic
Description: 
 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 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. 
 This transducer is about 45mm in diameter and has 4Ω impedance and should be run at about 5W 
 Dimensions: 
 Height: 27mm / 1" 
 Diameter: 45mm / 1.8" 
 Length of Wires: 120mm / 4.7" 
 Weight: 174g 
 Specs: 
 Impedance: 4Ω 
 Power rating: 5W
Creates sound through vibration transmission
Turns nearly any surface into a speaker
Cushioned stand keeps your surface scratch-free
Allows you to hear without others around you hearing
Diameter: 45mm / 1.8"

Search query: vibration speaker
Relevance: Complement