1pc Painless Wear Wireless Bluetooth Earphone Sport Earbuds Business Earhook Headset
1pc Painless Wear Wireless Bluetooth Earphone Sport Earbuds Business Earhook HeadsetBluetooth version：V5.4Support protocol：A2DP/HFP/SPP/HID/PBAPTransmission distance：≥20mCharging voltage：5V/1ACharging time：about 1.5 hoursBattery capacity：200mAhusage time：about 30 hoursFrequency response:20Hz~20kHzSpeaker impedance：φ14.2mm 32ΩMicrophone sensitivity：-42Dbcharging interface：type-cProducts include1 * Bluetooth headsets1 * Charging cable1 * User Manual