Vivitek DW770 UST: WXGA Ultra Short Throw Projector, 3500 Lumens Vision Dynamic Range: 81 dB (A)

Dynamic Range: 81 dB (A)

High Volume Output: Emits an alarm sound of up to 100 dB to effectively alert and deter intruders

It supports up to 5 Grandstream DECT handsets

Model: DSP3010H

340W (Normal Mode)

Vivitek DW770 UST: WXGA Ultra Short Throw Projector, 3500 Lumens Vision Dynamic Range: 81 dB (A)The Vivitek DW770 UST is a cutting edge ultra short throw DLP projector designed for educational environments, offering stunning WXGA resolution and exceptional brightness. With a remarkable 3,500 ANSI lumens and a 10,000: 1 contrast ratio, it delivers clear, vibrant images even in well lit rooms. The projector can project an impressive 100 inch image from as little as 15. 75 inches away, making it ideal for small spaces. Its 4K compatibility ensures