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2 x 45mm 4ohm 4Ω 3W Stereo Speaker with PH2.0 Plug
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A compact stereo speaker pair for small audio projects, handheld devices, and embedded builds. Each 45mm driver is rated at 4Ω and 3W, delivering clear, bala...
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A compact stereo speaker pair for small audio projects, handheld devices, and embedded builds. Each 45mm driver is rated at 4Ω and 3W, delivering clear, balanced sound in a slim form factor. Pre-wired with a PH2.0 plug for quick connection to common audio amplifier boards.
Key Features
- Stereo Pair – Two matched 45mm full-range speakers
- 4Ω / 3W – Compatible with common amplifier modules
- PH2.0 Connector – Plug-and-play wiring, no soldering required
- Compact Size – 45mm diameter drivers for easy enclosure mounting
Ideal For
- Raspberry Pi and single-board computer audio
- Arduino, ESP32, and microcontroller projects
- DIY Bluetooth speakers and portable electronics
- Robotics and smart home gadgets
Compatible Amplifier Boards
- MAX98357
- PAM8403
- Other 4Ω compatible amplifier modules
Specifications
- Driver Size – 45mm diameter
- Impedance – 4Ω
- Power – 3W per speaker
- Connector – PH2.0 plug
- Quantity – 2 speakers per pack
Jargon buster
Plain-language definitions for the technical terms used above.
- ESP32
- ESP32 is a family of microcontroller modules with built-in wireless features such as Bluetooth and WiFi. Knowing this product uses an ESP32-based module helps explain how it provides wireless serial communication and firmware update features.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- single-board computer
- A complete computer built onto one circuit board, usually including the processor, memory, ports, and connectors. This matters because accessories like heatsinks must match the board’s layout and mounting holes to fit properly.
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