http://www.qsleeper.com/ <div class='quotetop'>QUOTE </div><div class='quotemain'>It features: * 1.25" Polycarbonate Bulletproof Plating/Shielding * Bio-Chemical Filtered Ventilation Rebreather * Control Panel Mode Selection (i.e., Basic System Ops., Intruder Setting, Energy Status, Lock Down, etc.) * Cover & Door Actuators w/ Emergency Release * One way see through head cover (reflective mirror on 2 sides and front) * Safety Features (Proximity Sensor, O2 Sensor, Smoke Det., Motion Det. Ect,) * Emergency Communication system (Cellular, Short-wave Radio, CB ect.) * Audio Amplifier (Amplify sound from out side unit) * Air/Water Tight Sealing External Override Key Pad & Remote Control Battery Backup Power Toiletry system</div>