I And U Earbuds
Bluetooth Version : 5 . 0+EDRPower Input : DC 5VEarphone Working Time : About 4-6 hoursEarphone Charging Time About 1 hoursCharge Time : About 3-4hoursEarphone battery capacity : 25mAhCharging Case battery capacity : 250mAhSupport Protocol : HSP / HFP / A2DP / AVRCPFrequency response :
