[What is this]: Do you want to rank first in WeChat sports ranking or other App sports rankings? Then this is your best choice! Imagine you are running and your WeChat program is automatically recording your steps; Made of high quality metal and plastic for durable use; Each joint is welded by hand[Intelligent control brush step frequency]: the other steps of the phone swing device brush exactly the same step every hour, it is easy to notice that it is of a mechanical step, our phone swing device automatically changes the number of steps per hour, making others feel like you are doing a daily walk, run and leisure [No Harm and Work Quietly]: The use of iron block hollow technology achieves the double-layer magnetic isolation to isolate the magnetic field interference to the mobile phone during the operation of the phone swivel device; and work quietly, instantly at night [Two ways to power]: You can use 4 AA batteries (not included), or you can also power the device by connecting the USB cable to the computer, power adapter or to the power bank (be sure to remove the batteries when desired). to connect the USB cable, or it may burn the coil in the base)[Suitable for most phones and applications in the market]: Suitable for most mobile phones under 6.2 inches, apply to most applications like smart bracelet, Wechat movement, ant forest; You can stop the swing, then the rocker can be used as a mobile phone stand, so you can easily enjoy the movies and so on on your mobile phone Note: The data are all manual measurement, please please allow 1-3cm error, due to the light and display difference, there will be some color difference, depending on the physical object received.