REFERENCE VIDEO :https://www.youtube.com/watch?v=ZkrjsoV3mz8 *Ball Ejection Speed: 10kmph to 120kmph *Ball Feeding Rate: 2second to 10 second *Ball Spin: Adjustable Top and Back Spin *Ball Oscillation: with Random Horizontal Oscillation to make the machine automatically feed the ball across the court *Ball Trajectories: Adjustable from Ground Stroke to lob angel *Weight: very portable of 20kg for battery model *Ball Capacity: 120 balls *Dimensions: 50cmH x 45cmL x 30cmW *Power: Battery powered with charger sent with machine. Optional AC module can be ordered. *BATTERY INFORMATION: Battery Sold Separately.Battery charger provided.Customer need order Power Module as a optional part. Battery option can be ordered for free, and main power module will be ordered at price of $99. To fit the module into the machine is super easy and it can be referred from the UM" Size 50 cm by 45 cm by 30 cm. Normally charging time is about 6 hours *Smart power cage design make a easy solution for power setup options *Playing time: 2 to 3 hours typical for in-cage battery *User manual downloadable from http://www.spinshotsports.com/UM.html *One year warranty will be with machine