Save Time, Effort & Money - Get On & Off the Job Quickly No Cutting Tiles, No Broken Tiles, No Mess Excellent Music & Voice Quality Inconspicuous Front Accessible Volume Control Integral Backbox Meets Or Exceeds ASTM E84 Flame & Smoke Test with 3 Hour Burn Rating (UL 181) Durable White Acrylic Baked Enamel Finish Built-In Amplifier Affordable Approved For Use In The City Of Los Angeles (RR 7811)