MouthPad is a retainer-like trackpad chip that sits on the roof of your mouth. It made a splash at the Consumer Electronics Show this week, although that might have just been saliva.

It can sense tongue movements, letting you scroll, type, make calls and even play chess with a swipe or a click of your tongue.

Augmental software engineer Corbin Halliwill who made the device, said it was was a "mouse for your mouth" although we have never needed to put a mouse in our mouth so we will take his word for it.

Augmental made MouthPad to be a handy tool for those living with disabilities, especially those with a hand problem or paralysis. It connects to any tablet, phone or computer through Bluetooth.

The Augmental team has been working on its prototype for about two years, mostly sorting out controls and adding filters so the device can work even if it gets wet from saliva or water. The product is expected to hit the shops later this year, and early access is available on their website now.

The MouthPad is clear around the teeth, and the middle is a golden touchpad that is the touch point for the tongue. Inside there is also a force sensor that picks up left and right clicks or could be set to other shortcut options. On the side, a small bump that holds the Bluetooth antenna and wireless charging battery sticks out and rests against the cheek.

Augmental doesn't suggest keeping it in for meals, but it is safe to drink with it in.

Halliwill said he wears it in the office while drinking water and his morning coffee. The company hopes to improve the technology in the near future, bringing new options for users in the coming months. Some extras may include voice and wheelchair control.

The battery lasts about five hours, but Augmental hopes to make it last eight in their next version.