This pump had me puzzled at first. I found the charging lead difficult to put in and wasn't sure wether it was going to charge but it did without difficulty. then I looked and looked but couldn't work out how to turn it on. After looking att he instructions I found you had to press the on/off button for several seconds until it lit up. Then use that button again to use the pump. It worked brilliantly. You press the button for several seconds again to turn off the pump.
It comes with several attachments that are really easy to switch.