6.5″ Two‑Way Speaker System — Features a 6.5‑inch woofer for low/mid frequencies and a 1″ tweeter for highs, delivering balanced sound across a wide range.

Rated Power Output: 40 W — Provides sufficient output for small to medium‑size rooms, offices, shops, halls, or PA systems.

Configurable Line Input — Supports 100 V (or 70 V depending on wiring) public‑address line systems, making it compatible with standard PA/distribution amplifier setups.

Wide Frequency Response: ~100 Hz to 20 kHz — Ensures that both speech (announcements) and music have clarity and reasonable bass/treble balance.

High Sound Pressure Level (SPL): ~90 ± 3 dB (at 1 W/1 m) — Good sensitivity for announcements and background music even with modest power.

Durable ABS Enclosure with Metal Grille — Rugged build suitable for indoor installations; black finish helps it blend with walls and commercial interiors.

Wall‑Mountable with Supplied Stainless Bracket — Easier installation on walls — ideal for offices, shops, schools, hotels, or public‑address setups.

Compact Form Factor — With dimensions around 298 × 218 × 195 mm and net weight ~3.5 kg ➝ manageable for mounting without heavy support structure.

Versatile Use — Music, Announcements, PA Systems: Because of its two‑way design, decent power & wide frequency range, WSK‑640C works well both for background music (in lobbies, shops, small cafés) and for voice announcements or public‑address requirements (schools, offices, hospitals).

Cost‑Effective & Easy Integration — As a passive, wall‑mountable speaker with standard 100 V/70 V line support, it integrates easily with common PA amplifiers or public‑address systems — useful where you want straightforward installation without complex wiring or expensive setup.