The 5W Single Speaker Audio Amplifier Kit is a compact Bluetooth/USB/TF MP3 audio amplifier module designed for portable audio applications. The kit includes a 5W speaker, 3.7V rechargeable lithium-ion battery, and an audio control panel with built-in amplifier, making it ideal for DIY Bluetooth speakers, portable music players, educational projects, and audio electronics.
Features
- Full Name: 5W Single Speaker Audio Amplifier Kit
- Built-in 5W mono audio amplifier
- Supports Bluetooth wireless audio
- USB flash drive playback
- TF (MicroSD) card support
- AUX audio input
- Rechargeable 3.7V lithium-ion battery
- Compact and easy to assemble
Specifications
| Specification | Value |
|---|---|
| Product Type | Audio Amplifier Kit |
| Output Power | 5W |
| Speaker Type | Full-Range Speaker |
| Speaker Impedance | 4Ω |
| Operating Voltage | 3.7V – 5V DC |
| Battery Type | 3.7V Rechargeable Lithium-ion |
| Audio Input | Bluetooth, USB, TF Card, AUX |
| Charging Port | 5V DC (USB) |
| Frequency Response | 20Hz – 20kHz |
| Signal-to-Noise Ratio | ≥80 dB (Typical) |
Control Panel Functions
| Button/Port | Description |
|---|---|
| ON/OFF | Power Switch |
| USB Port | USB Flash Drive Playback |
| TF Slot | MicroSD Card Playback |
| AUX | 3.5 mm Audio Input |
| Previous | Previous Track / Volume Down |
| Play/Pause | Play or Pause Music |
| Next | Next Track / Volume Up |
| DC 5V | Charging / Power Input |
Applications
- DIY Bluetooth speakers
- Portable music players
- Arduino audio projects
- Educational electronics
- Home audio systems
- Mini multimedia speakers
- Audio amplifier projects
- Hobby and DIY electronics
Advantages
- Multiple audio input options
- Compact and portable
- Rechargeable battery operation
- Good audio quality
- Low power consumption
- Easy installation
- Cost-effective
Size
| Specification | Value |
|---|---|
| Speaker Diameter | Approx. 52 mm (2 Inch) |
| Control Panel Dimensions | Approx. 85 × 22 mm |
| Battery Size | Standard 18650 Lithium-ion Cell |
| Weight | Approx. 120 g (Complete Kit) |
Package Includes
- 1 × 5W Audio Amplifier Control Panel
- 1 × 5W Speaker (4Ω)
- 1 × 3.7V Rechargeable 18650 Lithium-ion Battery
- Connecting Cables
Note: The amplifier module operates from a 3.7V rechargeable lithium-ion battery and can be recharged using a 5V USB power source. For the best audio performance, use the supplied 4Ω 5W speaker and avoid exceeding the rated input voltage.






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