1. Various throwing balls type: Topspin, backspin, flat, lob, right and left ball, and volleys. 2. The wireless remote control have 12 functions: Startup or shut machine; work or pause; random ball or fix position ball; long ball or deep ball; horizontal oscillation ball; shoot vertical oscillation ball; topspin ball;backspin ball. 3. Resolve many machinery block ball problem, the machine works more stable, more safe. 4.50 and 60 degree lobs: Our powerful overhead lobs are twice as high as other ball machinery that typically are 30 degree or less. 5. Fixed position or more-position throwing balls throughout the entire court. 6. Set shoot ball speeds: 40-160 kilometer per hour. 7. Feed tennis ball frequency: The shoot ball frequency can play 1.5 -20 second per ball. 8. Portability battery: : 4 -6 hours. 9. Power supply system: 110 V/220 V or the DC power. 10. Ball basket capacity: 160. 11. Cubage: L* W* H= 35* 40*45(cm). 12. Weight: 19 kg.