free whiteboard. 1.IQAio (IQ All-in-one machine)GR519 IQAio GR519 is an all-in-one device, it has 3 available sizes: 80????,92???? and 100????. It is not only a multi-point infrared interactive whiteboard, but also integrated with central control system, interactive whiteboard, wireless microphone, OPS computer, stereo amplifier system and other equipment. That means, with one-key powered on, teachers can power on all the devices including projector, interactive whiteboard, OPS, and stereo amplifier system etc. It will bring great conveniences for teachers.. The IQAio GR519 is an upgraded lightweight version based on the original IQAio GR511. The original dual-cavity structure was changed to a bottom-edge structure, so that the minimalist design accommodates modern classrooms and conference rooms. With one IQProjector V2 and one IQView E3821, you can achieve flexible and intelligent classroom.