> **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

# Audio & BLE/SPP Pass-through Module - Bluetooth 5.0

**Type:** Product page · **SKU:** DFR0781 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/audio-ble-spp-pass-through-module-bluetooth-5-0.html ([markdown](https://core-electronics.com.au/audio-ble-spp-pass-through-module-bluetooth-5-0.html.md))

This Bluetooth module features Bluetooth/U-disk/TF-card playback, and Bluetooth call function, supporting simple and clear serial port control function, BLE pass-through...

## Pricing

- **Price:** $6.80 (inc GST) — $6.18 AUD, exc GST
- **Quantity discounts:** 6+ $5.87 (exc GST) · 12+ $5.63 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 24 and Aug 28.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=DFR0781:1` (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/DFR0781:1.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

This Bluetooth module features Bluetooth/U-disk/TF-card playback, and Bluetooth call function, supporting simple and clear serial port control function, BLE pass-through, and SPP pass-through functions. The highlight of this product is the dual-mode Bluetooth, which also means that it can run the Bluetooth audio playback and data transmission at the same time, greatly reducing the development difficulty of embedded Bluetooth in other products.

### Features

- Support MP3, WAV, WMA, FLAC, AAC, APE Audio
- Support 128GB U-disk and TF card
- Bluetooth audio transmission and control
- Bluetooth call control
- Support BLE and SPP pass-through function

###  Specification

- Power Supply: 3.3V~5V
- Operating Current: 20mA
- Communication: UART
- Bluetooth: 5.0
- Operating Temperature Range: -40°C ~ 80°C
- Operating Humidity Range: 5%RH~95%RH
- Dimension: 23\*15.5mm/0.91\*0.61”

**Documents**- [Product wiki](https://wiki.dfrobot.com/Audio_BLE_SPP_Pass_Through_Module_Bluetooth_5.0_SKU_DFR0781)
- [Translated User Guide](https://core-electronics.com.au/attachments/uploads/DFR0781_english-translated-datasheet.pdf)
- [Datasheet](https://core-electronics.com.au/attachments/localcontent/FSC-BT401-Datasheet-V2_580345985a4.pdf)

###  Parts List

- Audio & BLE/SPP Pass-through Module - Bluetooth 5.0 x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/d/f/dfr0781.jpg)