BoomCupz introduces the Coastal Cupz, a classic-style tumbler designed for those who value both convenience and style. With a generous 24oz (700mL) capacity, this tumbler ensures your beverages stay at the perfect temperature for up to 6 hours, whether you're enjoying a day at home, by the pool, or on the move. Tailored to fit most cup holders, the Coastal Cupz is the ideal companion for any adventure. Its IPX6 waterproof rating guarantees protection against splashes, making it perfect for outdoor use. Crafted with high-quality 304 stainless steel inside and durable 201 outside, and featuring a weight of just 16oz (468g), it’s as sturdy as it is lightweight. The built-in Bluetooth speaker, boasting a 5000MAH battery, delivers up to 9.5 hours of music at 25% volume, enhancing your experience wherever you are. With an effective Bluetooth range of 10 meters and a micro USB charging port, the Coastal Cupz seamlessly integrates music into your hydration routine. SLE Customs takes it a step further by offering personalized engraving or printing options, making your Coastal Cupz uniquely yours or the perfect customized gift.