Bone Conductor Transducer with Wires - 8 Ohm 1 Watt

This Bone Conduction Transducer turns almost any solid surface into a speaker, making it ideal for wearable audio, hidden sound installations, creative projects, and experimental audio applications.

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. This transducer is lightweight and small and has 8 ohm impedance and should be run at about 1W. It pairs great with any of our audio amps such as the TS2012 breakout or MAX98306. Just connect it as you would any other speaker, we even have some wires pre-soldered on.

Features

* Bone conduction transducer with metal rod and voice coil design

* No moving cone – uses magnetic field to expand and contract metal for sound

* Can be pressed against bone or flat surfaces to create speaker cavities

* Produces sound perceived from within the head without external audio

* Waterproof design suitable for underwater use and swimming

* Lightweight and compact form factor

* 8 ohm impedance

* Operates at approximately 1W power

* Compatible with audio amplifiers such as TS2012 breakout and MAX98306

* Pre-soldered wires included

* Recommended protective covering (such as Sugru) for prolonged skin contact to prevent electrical shorting

Specifications

* Dimensions: 14mm x 21.5mm

* Weight: 9.6g

* 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)

Resources

* Datasheet

* Drawing

Package Contents

* 1x Bone Conductor Transducer with Wires - 8 Ohm 1 Watt