LifePro 4-Speed Vibrating Massage Ball

I have owned agility balls similar to this model..and they are amazing. I love the vibrating agility ball...but the ball I received has a usb charging port rather than the one in the picture (circle port)... at first I was glad...its easier to find a charger but when I used it, I noticed the button on this ball easily turns the unit off. On the other balls I have owned you have to hold the button down for atleast 5 seconds to turn off... the problem with the button easily turning off is when you are using it to massage with... when you touch the button it turns off.. so you have to start all over again... it is disappointing and annoying. I tried numerous techniques but could not massage with the ball vibrating without accidently turning off all the time. I would like to see if the one in the picture, with the circle charge port, has the delay shut off button feature... I will let you know if I get to swap them out!