Tiamat True Wireless Earbuds, Bluetooth Headphones, Advanced Mini Bluetooth V4.2 Earphones, IPX5 Waterproof Headset with Upgraded Battery and Charging Case for Samsung iPhone iWatch Upgraded Battery Support: Each earbud contains a 60 mAh Li-ion battery and can work up to 4 hours when fully charged. With the charging case, the earbuds can steam music for a total of 30 hours, longer than any other true wireless earbuds. The 800mAh charging case can also work as an emergency power bank, easily recharge an iPhone 7 from 0% to 40%. Market Leading Technology: Enjoy the latest Bluetooth V4.2 and CVC 6.0 noise canceling technology with this true wireless earbuds. The headphones Support both iOS and Android devices. Effortlessly pair one and the other automatically synchronizes. You can check connection and power status easily on your phone. Upgraded Battery Support: Each earbud contains a 60 mAh Li-ion battery and can work up to 4 hours when fully charged. With the charging case, the earbuds can steam music for a total of 30 hours, longer than any other true wireless earbuds. The 800mAh charging case can also work as an emergency power bank, easily recharge a cellphone from 0% to 40%. Great Sound Performance: Precisely tuned for fantastic resolve and moderate bass, this Bluetooth headset find a balance between comfortable sound for music and clear human voice for phone calls. You can either enjoy Hi-Fi music while sporting or make a hand-free call during driving. Reliable Quality and Warranty: IPX5 water resistance protects the earbuds against rain and sweat. The mini buds also passed 1.5m drop test, so you neednt worry about unexpected drop or shock. 30-day money back and 12-month free warranty come with this product. Please feel free to reach our friendly customer support.