Chorei serve trainer worked by IoT and applications is the first product in the world as training table tennis service.
There are about 800 millions professional and amateur table tennis players in the world,
and 400 millions people play table tennis everyday.
230 countries are engaged in ITTF, the most numbers of countries are involved as single event,
and it is the most general sports.
Actually many powerful nations like ROK, CHN,JPN, TWN are in the eastern north Asia
and the table tennis product market is big too.
Therefore if we take advantage of geographical advantage greatly,
potential of export is very big and we can get the big market.
In short this machine's function
1) Prevent players from practicing service without thinking
2) Make boring training be fun
3) As players practice by focusing, training effect is good
4) You can investigate through sharing by being storing the result of training in DB.