ZEPP tennis swing analyzer. Not much to say about this one. If you're a college player, a junior tennis player a pro or serious recreational player you simply need this. In today's world the player with better data has a better chance of winning. Legal mumbo-jumbo – no returns, no international bidders or shipping to non-PayPal/eBay addresses. Etc., etc., etc. I take pride in trying to accurately describe anything I sell on eBay. Take a look at my feedback and how long I've been on eBay. Thanks so much for looking at the item and I hope all the tennis players out there have a fantastic spring and summer. Remember- perfect practice makes perfect!