REMAX RB - T21 Mini Bluetooth Earphone - Black
REMAX RB - T21 মিনি ব্লুটুথ ইয়ারফোন - ব্ল্যাক
Bluetooth version: V4.1
Transmission range: ≤10m
Rated power: 5mW
Frenquency response: 50Hz-10KHz
Mic sensitivity: -42±3dB
Output sensitivity: 99±3dB
Speaker unit: 6mm 16Ω
Battery: 50mAh
Standby time: 100h
Charging time: about 1.5h
