Specification: Item Type: Music Tumbler Cup Capacity: 20 oz /600 ml Power Input Port: Micro USB Output Power: 3W Battery Type: Lithium battery Battery Model: 18650 Battery Capacity: 600mah Charging Time: 120 Minutes Running Time: 120 Minutes Waterproof Class: IP5 Bluetooth Effective Distance: Within approx. 15meter / 49.2ft Material: Stainless steel and pp Weight: 493 g / 17.4 oz(approx.) Package List:1 x Cup1 x User Manual1 x Data Cable Features MUSIC TUMBLER CUP:Each stainless steel speaker tumbler cup has a removable wireless speaker at the bottom and LED lights flash to the beat of the music so you can enjoy the music and relax while drinking water SPEAKER WATER BOTTLE MATERIAL:Insulated music cup is made of stainless steel, durable, will not rust, you can rest assured to use VACUUM INSULATION CUP:Music cup adopts vacuum double wall design, possess good insulation effect. Keep hot drinks warm for up to 6 hours and cold drinks refrigerated for up to 12 hours with this insulated coffee travel mug EASY TO REMOVE AND CLEAN: When you clean the cup, unscrew the speaker to separate from the cup, the speaker can not be washed, will be damaged. No microwave oven ENOUGH CAPACITY:The music tumbler cup is designed in a straight barrel and fits into a car cup holder. Capacity of 20oz(600ml), enough for your daily use