VIVO 100" Electric Projector Screen, Motorized, Auto Remote 4:3 Projection Mount 80" x 60" (PS-E-100V) Diagonal Size: 100" (60" x 80"); 4:3 Aspect Ratio Durable metal casing for Dual Wall and Ceiling Installation Design perfect for home or business 1.1 gain screen material with standard black backing to eliminate light penetration. Four side black borders enhance picture contrast and absorb light overshoot. Quiet contemporary electric motor Easy to adjust with electric up/down stop limits on RF remote; Battery included