1. Size: 40"-600" 2. Synchronous motor or Tubular motor 3. with wireless remote control (RF and IR) 4. ... , business meetings, home cinemas, or other entertainment sitesHeavy-duty tubular motor, providing high quality, long-term reliability, with lower noise ... can produce any size according to customer’s requirements.Motor style: synchronous motor and tubular motor available. Electric projector screen ...