Product details
Function:
1.Speed:20-140 km/h
2.Frequency:1.8-6 sec/ball
3.Fixed point
4.Random function
5.Top and back spin adjustment
6.Deep-light ball
7.Standard accessories :remote control,power cable
8.Battery Optional:3-5 hours working time
9.Ball Capacity:160pcs
http://www.dkballmachine.com/