Motion Tennis gone wrong?

[Galaki]

Tennis anytime, anywhere! Sonic Slam™ racquets have the motion tech to make your virtual "shots" go slow or fast, short or long. These racquets even keep score for all your volleys and drop shots, too. Serve it up and smash your way to victory!

• Play day or night with voice, sound, and light effects
• Rally through three unique game modes
• Comes with two Sonic Slam™ racquets
• Each racquet requires 3 AAA batteries (included)

Now, you just play without the ball, just listen to the sound and swing, LOL.