Returned the first sprinkler when it failed to operate as advertised and the second product malfunctioned as well, same problem. The sprinkler either will not oscillate or will start to work properly then drop to a minimal output and remain locked in position.
I changed hoses, turned off other faucets thinking the sprinkler needed a higher water pressure, and cleaned the spray nozzles - nothing worked.
After reading all the complaints against the company I am returning it to the dealer and let them handle it. For the price you pay for these products you would expect better quality and customer service.