Drown out the
voices in your head with a bone conduction transducer! This incredible 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 - if
pressed against a flat surface or cavity it turns it into a speaker!
Often these size transducers are pressed up
against the jaw or ear bone to turn the skull into a speaker cavity. The effect
is a perfect quality sound that is coming from within your head that nobody else
can hear. You can also press it against your elbow bone and stick a finger in
your ear to hear the audio transmitted through your arm! Since no air is
required, we've seen this kind of module covered in plastic so it can be used
for waterproof 'underwater' headphones for swimmers. Other fun tricks you can
try: press it against a table or wall to make a flat speaker, or at the end of a
plastic cup to point sound in a particular direction.
If you plan to use the bone conduction transducer
for prolonged direct contact with skin, we recommend that cover the transducer
and wire connections with something like Sugru to prevent accidental shorting of
driver current through the skin, due to sweat and electrolyte accumulation
around the metal parts.
transducer is lightweight and small and has 8 ohm impedence and should be run at
about 1W. It pairs great with any of our audio amps such as theTS2012 breakoutorMAX98306. Just connect it as you
would any other speaker, we even have some wires pre-soldered on.
Dimensions: 14mm x 21.5mm / 0.6" x .8"
Power handling: 1 watt RMS/2 watt max
Le: 1.26 mH
Impedance: 8 ohm
Re: 5.8 ohms
Frequency response: 300-19,000 Hz (but will vary with what you use as the transducer surface)
Fs: 1,600 Hz
SPL: 90.1 dB 1W/1m (but will vary with what you use as the transducer surface)