Bluetooth 5.0 tech wireless connection, IPX6 waterproof Bluetooth speaker built-in lid of bottle, complated with bottle to play deep base sounds. on bottom of bottle with silicone anti-silp.Bottle body is 3 layers of 304 stainless steel keep water hot or cool for 6-8 hours, using in riding bike and sport at gym.
Support customized print on bottle and laser logo. with kraft packing box for promotional gifts.