Model:Pro3Bluetooth version: 5.0Output power: 40mW; Battery capacity 35mAH , charging box is 300mhBluetooth distance: 5-10 metersFrequency response: 20-20000HzOperating voltage range: 3.0V-4.2VPowerful noise de-noising circuit (active noise reduction)Charging time about 1-2hoursTalk time is about 2-3 hours (a pair of earphones use together), music time about 2-3 hours (a pair of earphones use together), Charging box can charge for the earphones about 2-3 times.Compatible system: Suitable for mobile phones with Android 5.0 or higher or iOS 9.0 or higher.Support all mobile phones, tablets and notebooks with Bluetooth function.
