Casio has released its second rugged handset in the US on Verizon hoping to appeal to the more adventurous phone user.

The Casio G'zOne Rock is a clamshell handset that looks like it could take a beating. On the inside there is a 2.1-inch colour screen, standard keypad (not QWERTY), Bluetooth, while the outside offers a 2-megapixel camera with LED flash. 

The phone hits the MIL-STD 810F standard meaning you can drop it down the toilet, throw it on the floor and generally go most places on the planet (read building site) without fear of it breaking.

Those who do adventure out into the wilds can be safe in the knowledge that the handset also offers a digital compass, walking counter, thermometer, daily tidal graphs, sunrise and sunset times and a moon calendar.

It's out on Verizon very soon.