Wireless BT Tumbler

About this item SIZE：Bluetooth tumbler has an 18 or 40oz. capacity,  MATERIAL: Made of durable plastic and stainless steel, the tumbler part is BPA free. The stainless steel double-wall vacuum-insulated fun tumbler should be hand washed with the speaker removed; the speaker can be wiped clean with a damp cloth (DO NOT PUT SPEAKER IN DISHWASHER). Do not microwave. ON THE GO：A splash-proof lid and straw make sure your drink is easy to access without risking a mess. FEATURES：The removable speaker in the base lets you enjoy your music and beverage at the same time with Bluetooth technology. The integrated speaker lights flash when music is playing. The battery recharges in 1. 5 hours with the included micro USB charging cable. LIFESTYLE：Staying hydrated is an important wireless speaker helps keep drinks cold for up to 16 hours and prevents condensation.