The Echo Tritan™ Audio Bottle 25oz lets you connect wirelessly to any Bluetooth enabled audio device and enjoy your favorite music, podcast or audiobook. It supports conference calls as well for easy, hands-free operation. Screw-on lid with a built-in bluetooth speaker to provide hours of on-the-go entertainment. Bluetooth working range is 10 meters (33 feet). Max 4 hrs operating time. Durable Tritan material is shatter, stain, and odor resistant. It also has a perfect opening for ice cubes and a wide mouth opening for easy cleaning and filling ice cubes. IPX4 water resistant. This piece is BPA free and also an exclusive item.