Compatible with all smartphones such as iOS and AndroidProduct features:1, LED display function, you can directly know the power and charging status2, Bluetooth V5.0, supports automatic pairing and most Bluetooth devicesWith the charging box with 3 1200 mAh, you can charge headphones and phones4, IPX4 Waterproof, you don't have to worry about water and sweat anymore Description:Name: F9 Bluetooth HeadsetBlack ColorMaterial: ABSProgram: Blue Dragon 8832Bluetooth Version: V5.0Operating Frequency: 2.4GHz - 2.4835GHzBattery Display: Support for Android, IOSWorking Distance: 10 MetersFrequency Range: 50Hz-20kHzSensitivity: 108 2dbImpedance: 16 5% Akku: 60mAh HeadphonesCharging Battery: 1200MAHContinuous Use of Headphones: 3-5 HoursCharging Container Size: 8 * 5.5 ** 3 CMPackaging Content: 2 x Bluetooth Headphones, 1 x Charging Container, 1 x Micro USB cable, 1 x English manual, 4 x earplugs