DO NOT BUY - Model H lasted less than 2 years and ARRIVED malfunctioning.
It cannot be used outdoors *at all* (It violates warranty, despite the advertisement) it cannot go over bumps higher than 1/4", cannot take hills. This is for FLAT SURFACE/INDOOR ONLY
Their technical support is nuts to deal with, they DO NOT HELP, they will call at times you SPECIFY not to and are conveniently unavalable.
It's unpowered, and now mostly a cat bed once I go to a company that produces quality, lasting products through my local medical services.
This dropshipping company *preys* on the disabled. If you have a loved one, love them enough to not burn your cash!
Shara, er are sad to hear you are not happy with your purchase. Please call us at 1-800-320-714 ext 9202 and we will do our best to make it right