Added Bonus of Charging Station and USB Ports: The built in electrical outlet is a big plus, it is super convenient for your phone, iPad, laptop, lamps and frequent devices. Never worry about running out of battery when lie on the couch with your electric devices Height Adjustable for Multitude of Uses: 30~49 height range for changing between sitting to standing. Whether you are looking for a compact computer desk for small space, teen students room, college dorm, or high standing desk for your home office , a snack tray/sofa side table for watching TV, a laptop or tablet stand for relaxing in bed, this adjustable rolling table fits the bills well