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Amazon.com: Optoma UHD51A 4K UHD Smart Home Theater Projector, Works with Amazon Alexa & Google Assistant : Everything Else
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Amazon.com: PCMD, LLC. Projector Ceiling Mount Compatible with Optoma UHD300X UHD350X UHD40 UHD50 UHD51 UHD51A with Lateral Shift Coupling (Telescoping 13-20-Inch Extension) : Electronics
![Amazon.com: Optoma UHD51A 4K UHD Smart Home Theater Projector, Works with Amazon Alexa & Google Assistant : Everything Else Amazon.com: Optoma UHD51A 4K UHD Smart Home Theater Projector, Works with Amazon Alexa & Google Assistant : Everything Else](https://m.media-amazon.com/images/I/81CyQXbLp2L._AC_UF894,1000_QL80_.jpg)