Ultra-Long Battery Life: Up to 30 hours of playback and could stand by for more than 1 week when fully charged Super Fast Charging: 10 minutes charge to get 10 hours of playback by using common Type-C charging cable IPX7 Water & Sweatproof: Perfect for all-weather Advanced Bluetooth 5.2 Chip: Perform faster transmission speeds and more stable connections High-Quality Music: 10 mm driver unit provides well-balanced audio with rich bass and enhanced clarity