Calcini® TWS Earbuds feature wireless connectivity, a portable charging case, and LED power display for convenient everyday use. IPX5 water resistance handles daily workouts, travel, and outdoor needs, while the ultra-long battery life—8 hours on a single charge and up to 20 hours with the case—supports commuting, office work, and business trips. The ergonomic design includes multiple sizes of eartips and earwings to fit various ear shapes perfectly with zero pressure, ensuring long-term comfort. Conveniently check battery levels on the front LED screen, which also supports wireless charging. With a sleek surface perfect for custom branding, they serve as the ideal choice for promotional events, employee gifts, client giveaways, and corporate tech projects.