ASUS B1M, 700 ANSI lumens, DLP, WXGA (1280x800), 3500:1, 4:3, 792.5 - 3886.2 mm (31.2 - 153") ASUS B1M. Projector brightness: 700 ANSI lumens, Projection technology: DLP, Projector native resolution: WXGA (1280x800). Zoom ratio: Fixed, Throw ratio: 0.9:1, Offset: 100%. Analog signal format system: NTSC, PAL, SECAM. Compatible memory cards: SD. Noise level: 32 dB, Noise level (economic mode): 28 dB, Mean time between failures (MTBF): 30000 h