Comparing with other brands , like lobster tennis machine, spinfire tennis ball machine etc., a lot of clients still choose Siboasi tennis feeding machine. Siboasi is a professional manufacturer for tennis ball feeding machine since 2006, having clients for over 100 countries, and currently having some overseas warehouses for fast delivery for clients ,like USA warehouse , Denmark warehouse –more will be coming soon for clients. For Lobster or spinfire brands, as know that they do not have their own factory , they works with factories to customize the tennis training machines with their logo, but siboasi has its own factory in China, the factory are with about 200 staffs: RD department, sales department ,production department etc. . Tennis feeding ball machine is their first main product from the year of 2006, then stringing machine for rackets (badminton racket and tennis racket ), then badminton feeding equipment, basketball rebound ball machine, football training ball machine, volleyball feeding training equipment etc. . With more than 16 years production and selling experience in tenis ball training machines field, siboasi have been loved by a lot of fans from all over the world. For some clients , after comparing with other brands, they finally still choose siboasi brand. And after receiving and testing siboasi tennis ball machine , 99% of them are satisfied with it and love to introduce friends to buy it or repeat to buy next time . From this point , could see the quality of siboasi tennis machine is good /stable, some clients who bought 10 years ago, currently still use it very well . A good saying like : good product speaks for itself. Here introduce the hottest siboasi model S4015 tennis machine for your ref. below : It is the top and hotest siboasi tennis shooting ball machine –It is the most popular model all these years. Big ball capacity : could hold about 160 balls , let players enjoy the playing timing ; Both Ac and Dc power for this model : AC : 110-240V ; DC: 12V The rechargable battery could be built inside of the machine , also could built as external type ; Battery could last about 4-5 hours per full charging ( charing about 10 hours)–Some clients got back that could last more than 6 hours ; White , red , Black color for options; Two years warranty : there is siboasi professional after-sales department to follow to solve if any until satisfied ; Smart remote control for this machine; Full functions : topspin ball , backspin ball, small ball, cross line ball, two line ball, three line ball,random ball etc.; Self-programming function: could set out different ball shooting you want ;