The E Cannon, manufactured by Sports Tutor, is a great tennis ball machine for groundstroke and volley practice. It is suitable for juniors and intermediate players and has a maximum speed of 45mph.

With a capacity of 70 tennis balls, the Sports Tutor E Cannon throws all balls with top spin. It has a playing time of around two hours, if the rechargeable battery (which is included) is fully charged. 

Simple to operate via a control panel, the ball speed, trajectory and interval between shots can be set to beginner, intermediate or advanced levels. There is a start up time delay to allow the player to get to the other side of the tennis net.

The E Cannon can be bought in the fixed position or with an oscillator. The horizontal oscillator, which sits underneath the E Cannon, moves back and forth to change the direction of the ball feed.

The E Cannon weighs approximately 10kg and has a built in handle to move the machine.

Sold with a 2 year manufacturers warranty. Battery comes with a 6 month warranty and the charger is covered for a year.