Awei T230 ANC Pro Wireless Earbuds ANC+ENCSpecification:Model: T230 ANC ProBluetooth Version: 6.0Transmission Distance: 10mBattery: 300mAh / 35mAh/3.7VStanby Time: about 300HMusic Time: about 6HTalk Time: about 4HCharging Time: about 1HImpedance: 32 Ω ± 15Size: 65*47*29mm