Outdoor movie usage with a Job Rocker Max

If I use this speaker with a projector and a laptop for an outdoor movie, would you recommend I use the aux in? Also, if I bought 2 of them, can I use them both at the same time? I know I can't pair 2 at the same time, but can I hook them both up at the same time with cords? I want sound on both sides of the yard, not just in the middle. (I purchased the job rocker max from Costco)
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