... or conference Multimedia portable mobile terminal AIO:TZ8002 It includes:projector,computer,central control,power amplifier,speakers,wifi mic,exhibition ... impedance4ΩFrequency response20-20kHzRated power15WMaximum power30WElectronic board system specificationsPhotographic chip typePhotoelectric sensorScreen sizeProjection sizeCoordinate calibrationAutomatic correct screenCorrect time≤3secAccuracy ...