item no : B12 BluetoothSport Earphonebr bluetooth version : 5.0br Transmission range : About 10mbr Sensitivity : 103+3dBbr Charging time : About 1.5hbr Speaker size : 12mmbr Frequency range : 20-20000Hzbr Play time : About 6hbr Inpedance : 32br Input : 5v ------ 2.1Abr Battery Capacity : 73mahbr Price : 990tk in Bangladesh.br Parches by Evaly.combr #uiisiib12 #bluetoothHeadphone #unboxing #sportearphonebr #creativetechnology360br #reviewbr #creativetechnology360br #uiisiib12magneticsportsbluetooth5.