Nisplay N1 Tragbare Tennisballmaschine

I bought the machine 3 months ago it has been helping me well to improve my technique. However, recently I found that each time after less than a hour of playing with N1(with spinning adjusted as 7-8), the motor became slow down and can't shoot the ball high enough. And after few more shots , it stopped operating and gave long "beep" "sound. I contacted the support team by email week ago, no reply received at all so far. I still don't know how to solve the issue. I am frustrated with their unresponsiveness.
I have no choice but to give 2 starts on review.

I researched a large number of ball machines and decided on this one based on the features and the price. I received this at Christmas and have only had the opportunity to use a couple of times because of the weather. The instructions are easy to follow and it does not take long to get the controls dialed in. So far, it works very reliably although there is occasional variability in the distance that the ball is thrown, but I don't regard this as an issue because I don't think it's realistic to expect to stand in exactly the same place all the time. Otherwise, it performs as expected and I am very pleased. It is very good value for the money.

Most of all, I want to comment on customer support. I opened up the machine as a Christmas gift. This included the oscillator. When I went to use this machine for the first time I noticed that I did not have the power splitter cord to run from the battery to the ball machine and oscillator. I don't know if it was missing or was accidentally thrown out. Regardless, when I contacted customer support by email and explain the situation, they immediately mailed me a new cord free of charge. Whether it was my error or not, it was clear that they wanted a satisfied customer. In my opinion, good customer service is as important as the quality and value of the product.

This is a great little machine! I was skeptical about buying an unknown brand but customer service was very prompt in answering my questions before purchase. I have used it 13 or 14 time so far and have had no problems. The balls have never jammed. Once in a while there was a delay in ball launch but no manual intervention was required and the misfire corrected itself each time. I did not buy the oscillator. I alternate between forehand and backhand shots and get a good workout. I try not to change the ball launch angle too much. Instead, I move the machine forward or back to the baseline depending on whether I want to practice ground strokes or lobs. The external battery is a big plus as well. I find it is best to charge the battery right after each use. I vacuum the machine to remove debris or green lint from the balls that collects in the machine. I am in my sixties and find this machine very light and useful in practicing a wide range of shots. I have purchased other ball machines but have had problems when the balls jammed. I have not had problems with this one so I am giving it 5 stars.

I have only had the Nisplay tennis ball machine for about a month, but I have only have positive reviews. The tennis ball machine with and without the oscillator works great.

I also had an issue with the battery, potentially caused by not correctly connecting the wires (push them on between the prongs, it requires a little muscle to get them on!). When I contacted Nisplay, I was put in touch with a very responsive contact that even called me and sent me a new battery for free, even though I may have caused the issue. Overall, I am very pleased with both the product and the customer service!

Great machine, and the customer service is great.