Let this be music to your ears, look no further than this 11 oz. stainless steel Rumble bottle with speaker! This handy bottle measures 10" and features a stainless steel inner and outer shell. It has a screw-on, spill-resistant lid with easy carry handle and a wide-mouth opening, as well as a wireless speaker with high-definition Bluetooth 4.0 technology. It comes with a micro-USB input (cord included) and a 300 mAh polymer battery, and it pairs from up to 30 feet away. FDA approved and BPA free. Hand wash recommended (remove speaker base prior to washing).