> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Bone Conductor Transducer with Wires - 8 Ohm 1 Watt

**Type:** Product page · **SKU:** ADA1674 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/bone-conductor-transducer-with-wires-8-ohm-1-watt.html ([markdown](https://core-electronics.com.au/bone-conductor-transducer-with-wires-8-ohm-1-watt.html.md))

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...

## Pricing

- **Price:** $17.80 (inc GST) — $16.18 AUD, exc GST
- **Quantity discounts:** 10+ $15.70 (exc GST) · 50+ $15.37 (exc GST)

## Availability & dispatch

- Out of stock — the product page offers email notification when it returns.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=ADA1674:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/ADA1674:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

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, Adafruit 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 impedence and should be run at about 1W. It pairs great with any of our audio amps such as the [TS2012 breakout](https://core-electronics.com.au/stereo-2-8w-class-d-audio-amplifier-ts2012.html) or [MAX98306](https://core-electronics.com.au/stereo-3-7w-class-d-audio-amplifier-max98306.html). Just connect it as you would any other speaker, Adafruit even have some wires pre-soldered on.

Bone Conductor Transducer with Wires - 8 Ohm 1 Watt (7:01)

### Technical Details

- Dimensions: 14mm x 21.5mm / 0.6" x .8"
- 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)
 

 ![](https://core-electronics.com.au/attachments/localcontent/boneconductordim_68603ab042a.jpg)

 ![](https://core-electronics.com.au/attachments/localcontent/rohs_icon_8216055e11.jpg)### Documents

- [Datasheet](https://core-electronics.com.au/attachments/uploads/C2049_datasheet.pdf)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/1/6/1674-00.jpg)