The **AS07708PS-2-WR-R** is a high-performance miniature speaker manufactured by **PUI Audio**. It is part of their "AS" series, designed specifically for applications requiring high fidelity and moisture resistance in a compact form factor. --- ## 1. Technical Specifications Below are the primary electrical and physical specifications for the component: | Parameter | Specification | | :--- | :--- | | **Manufacturer** | PUI Audio | | **Type** | Dynamic Speaker (Moving Coil) | | **Impedance** | 8 Ohms (±15%) | | **Power Rating (Nominal)** | 2.0 Watts | | **Power Rating (Maximum)** | 3.0 Watts | | **Frequency Range** | 150 Hz ~ 20,000 Hz | | **Sound Pressure Level (SPL)** | 84 dB @ 1W/0.5M | | **Ingress Protection** | IP67 (Waterproof/Dustproof) | | **Termination** | Wire Leads with Connector | --- ## 2. Key Electronic Features ### A. IP67 Waterproof Rating The "WR" in the part number denotes **Water Resistant**. The speaker features a specialized diaphragm material (typically a polymer or treated cloth) and sealed gaskets that allow it to operate even after immersion in water. This makes it ideal for outdoor or medical environments. ### B. High Power-to-Size Ratio Despite its small footprint (77mm x 77mm frame size), it can handle up to **3 Watts** of peak power. This is achieved through a high-energy Neodymium magnet and a robust voice coil assembly. ### C. Wide Frequency Response Unlike standard buzzers or "beepers," this is a full-range speaker. With a lower frequency limit of **150 Hz**, it is capable of reproducing human speech and music with significant clarity. --- ## 3. Physical & Connection Data ### Connector Type The part usually comes pre-terminated with a wire harness. This simplifies assembly in production environments, removing the need for direct soldering to the speaker terminals, which can sometimes damage the delicate voice coil wires. ### Mounting The square frame usually includes mounting holes at the corners. The "R" suffix often refers to its compliance with **RoHS** standards, ensuring no hazardous substances like lead are used in its construction. --- ## 4. Typical Applications * **Medical Devices:** Portable monitors that require audible alarms that can be sanitized/washed. * **Outdoor Kiosks:** Intercoms or ticketing machines exposed to rain and dust. * **Marine Electronics:** Dashboard alerts for boats or jet skis. * **Industrial Controls:** Panels in wash-down environments (food processing).