iHome iBT35 Rugged Portable Waterproof Bluetooth Stereo Speaker with Speakerphone Weather Tough + Shockproof Wireless Stereo Speaker, IP67-rated water and dust proof Rechargeable battery for up to 8 hours of playing time (USB charging cable included) Speakerphone with built-in mic and answer/end buttons and to take calls using your iPhone (or other Bluetooth-enabled cell phone) Rugged shock proof cabinet,Carabiner clip with built-in bottle opener LED indicators for battery charging and Bluetooth pairing