 Hey guys, it's Brian with The Verge. We're here at Sony's booth at CES. We're looking at what they're calling the Tennis Sensor. This is a prototype device. You put it into the end of a tennis racket. There are motion sensors in here, acceleration sensors. It can tell you basically the motion and how hard you're hitting a tennis ball with your racket including what areas of it you're hitting. Now I have not played tennis before. I don't play tennis regularly at all. In fact, I've never touched a tennis racket before so this is going to be interesting. Ah, it's awful.
 Hey guys, it's Brian with The Verge.
 We're here at Sony's booth at CES.
 We're looking at what they're calling the Tennis Sensor.
 This is a prototype device.
 You put it into the end of a tennis racket.
 There are motion sensors in here, acceleration sensors.
 It can tell you basically the motion and how hard you're hitting a tennis ball with your
 racket including what areas of it you're hitting.
 Now I have not played tennis before.
 I don't play tennis regularly at all.
 In fact, I've never touched a tennis racket before so this is going to be interesting.
 Ah, it's awful.