- Valcom in-wall speaker- Signature series- One-way only- High-fidelity audio quality- Simply recess in a wall and either paint or wallpaper over for a "hidden" speaker- White metal grille- Built-in amplifier- Built-in volume control- Dimensions: 12"Hx 8.65"W x 3.2"D- Weight: .5lbs- VALCOM POWER UNITS: (-4)