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The features of TIAMAT SAIREN II
**POWER BANK Function**: Built-in 1000 mA battery, support emergency charging power bank function, Support android, and apple plug.
**Upgraded Long-lasting 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 stream music for a total of 30 hours.
**Leading True Wireless earbuds 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.
**Great Sound Performance**: You can either enjoy Hi-Fi music while sporting or make a hand-free call during driving.
**IPX56 Waterproof and anti-shock**: IPX56 water resistance protects the earbuds from rain and sweat. The mini buds also passed 1.5m drop test, so you do not worry about unexpected drop or shock.