Billie Jean King's Eye Coach Pro

Good for home practices

I already saw the results in the first week

This is a very good complementary tool for improving the techniques. It's winter here in Canada, which limits our tennis options. But with Eye Coach, I can practice at home. Once the perfect technique execution is found, we can repeat over and over again to "record" it in the muscle memory. 30 minutes per day is enough to be sweaty.

Quality Issue?

I can’t speak to whether this device helps your game yet as I’ve only had it a couple of days. However on day two, one of the rubber coverings on the device that holds the tennis ball went flying off- when I picked it up, it was cracked at the bottom joint and now won’t stay on the device. Given the cost of this device, I’m super un-impressed.