The DiamondBoxx 10TWS is an ultra-portable, ultra-rugged and waterproof Bluetooth speaker that is small in size and light-weight but with surprisingly big sound. The durable and integrated tie string allows secure attachment to your clothes, bike, scooter, belt loop or backpack, purse, gym bag, fence, tree branch, tent, just about anything making the 10TWS your companion on every adventure. The 10TWS is IPX7 waterproof and offers over 4 hours of playtime, powered by a 800mAh rechargeable Li-ion battery, allowing you to bring your music with you all day. A built-in noise and echo-cancelling speakerphone gives you crystal clear calls with the press of a button.