"Get Teed Off at OU" Golf Classic Soundwave Copper Vacuum Audio Bottle 22oz The Soundwave audio bottle blasts your favorite soundtrack and is also a great water bottle. The screw-on lid has a built-in, light-up, Bluetooth speaker complete with flashing LED lights to provide hours of on-the-go entertainment. The water bottle has double wall stainless steel construction. Its Inner wall is plated with copper for ultimate insulation to keep drinks hot for 12 hours and cold for 48 hours. The Bluetooth working range is 10 meters (33 feet). Maximum 4 hrs operating time, charges in 2.5 hours and is water resistant