Vacuum Insulated Premium Water Bottle with Rechargeable Bluetooth Speaker Hydrate your soul with this convenient, chic and stylish 23 oz insulated bottle flask. The Ultimaxx Vacuum Insulated Premium Water Bottle with Rechargeable Bluetooth Speaker is a double wall insulated reusable bottle with Bluetooth wireless speaker. BPA Free, vacuum sealed, made of stainless steel, and keeps your beverages cold for up to 24 hours and hot for up to 14 hours. A detachable Bluetooth speaker lets you enjoy music while you hydrate. With a convenient carry loop it's the perfect companion for any adventure! Internal rechargeable lithium ion battery in the speaker plays for up to 8 hours on one charge (charging cable included.) Use speaker with bottle or separately!