Outdoor Tech launched a Kickstarter campaign to make the Big Turtle Shell a reality and after receiving a total pledge of more than $300,000 (the initial goal was $40,000), the speaker is now available in the UK.

The Big Turtle Shell is a speaker designed for outdoor use thanks to a water-resistant and shock-proof shell. It can also be used as a power bank to charge external devices via USB. 

Connection is via Bluetooth 4.0, meaning users can stream music from smartphones, tablets, laptops or other Bluetooth-enabled devices, with a range of up to 30 feet.

The Big Turtle Shell delivers 110 decibels of "clear audio power", its maker claims, and when laid flat sound is dispersed through 360 degrees. A 7800mAh battery gives a claimed 16 hours of playback.

The Outdoor Tech Big Turtle Shell wireless speaker is available now for £200.