The ZH400 is one of Optoma's most compact and hassle-free DuraCore laser projectors to date. Designed for maintenance-free continuous operation, this 4,000 lumen projector delivers powerful image performance with flexible installation features and extensive connectivity options in a sleek, compact form factor, up to 34% smaller than previous Optoma models. An added benefit, the ZH400 features an external power supply offering more reliability, portability and energy efficiency. Designed with the environment in mind, the eco-friendly packaging contains up to 97% recyclable materials. Geared for conference rooms, boardrooms, and other corporate spaces, the ZH400 features a 360 degree and portrait mode operation for a flexible setup. For ultimate convenience it comes with an RS232 connection for monitoring and controlling and a built-in speaker.