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HW-770 Bluetooth 4.1 MP3 Decoder Module
HW-770 Bluetooth 4.1 MP3 decoder module with wireless audio streaming and stereo output—ideal for DIY speaker and audio projects.
The HW-770 Bluetooth 4.1 MP3 Decoder Module is a compact audio playback and wireless streaming solution designed for DIY and embedded audio projects. It supports Bluetooth 4.1 audio streaming, allowing wireless music playback from smartphones, tablets, and other Bluetooth-enabled devices.
In addition to Bluetooth, the module functions as an MP3 decoder, supporting audio playback from external storage such as USB flash drives and micro SD cards (depending on the board variant). It provides stereo audio output with stable performance and low distortion, making it ideal for integrating into speakers, amplifiers, and portable audio systems.
With simple power requirements and easy control options (buttons or UART control), the HW-770 module is widely used in DIY Bluetooth speakers, car audio systems, home audio upgrades, and portable music players.

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- Support wireless upgrade firmware
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- Built-in onboard antenna &Temperature and humidity sensor
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- 3 AA batteries / 5V adapter power supply
- Size: 61.6mm x 56.2mm;
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- Dormancy current: no dormancy.
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WH0201102 ABS 1.75 mm 1 kg Filament-Wanhao
- Material: ABS
- Color: White
- Material Diameter: 1.75mm
- Printing Temperature: 220° to 230°C
- Roundness Accuracy: +/- 0.5mm +/- 0.5mm
- Density: 1.31g/cm3 1.01g/cm3
- Mounted: Spool Mounted
- Net weight: 1kg
- Packaging Vacuum-sealed with desiccant to protect the filament from humidity
- Highly Detailed & Quality Outputs.
- Tried and Tested by Makenica.com
- Compatible with any FDM 3D Printer.
- ABS is stronger than PLA
- Easy to post-process.
- Environment friendly – ISO 9001 and ROHS certified

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