Key Io? More like Low Key.The Io just didn't do it for me. I would not recommend it to any of my friends, unless they were extremely sensitive and could not handle a stronger vibe. Still, I would probably recommend something with a bit more functions for the cost of this toy. Jopens attempt to provide quality toys at a lower price is a good gesture, but the design on this toy in particular fell short of my expectations.
Easy to care for.
Price too high for quality.
As for the functions, there five settings. The first is just a plain Jane straight vibration. The second, a fast pulse. Third is escalating. Fourth is a moderate pulse. And last is a series of long pulses followed by shorter pulses. The button is very easy to hit and turn on, or change your pattern. Holding the button down for 1-3 seconds results in it turning off, and it does not have a memory chip so it starts over when you turn it back on.