Simplify the following text for a Grade 7 native English-speaking person.
Original: The Kinect was named the `` Fastest selling consumer electronics device '' by the Guinness World Records , selling an average of 133,333 kinects per day with a total of 8 million units in its first 60 days .
Simplified: Kinect holds the Guinness World Record of being the `` fastest selling consumer electronics device '' . It sold an average of 133,333 units per day with a total of 8 million units in its first 60 days .