The Buhl VP20M Visual Presenter is a full-featured visual presenter at a price that won"t break your budget. The VP20M is the perfect choice for teachers and professionals on-the-go. Display 2D and 3D objects on any projector screen, TV or computer monitor so your whole audience can see what you"re talking about. The document camera is mounted on a flexible gooseneck mount for maximum versatility. There"s also a built-in microphone that, when hooked up to a multi-media projector with speakers, will project enough sound for small groups of people. The Buhl VP20M Visual Presenter is PC compatible only and will not work with Macs.