Bluetooth Version: V5.4 Transmission Distance: 12 meters Earbud Battery Capacity: 50mAh (each) Charging Case Capacity: 600mAh Talk Time: 16 hours (volume 70%) Music Time: 15 hours (volume 70%) Charging Time: 1.5 hours Standby Time: 2800 hours 7 days warranty বিক্রয় ও শিপমেন্ট: MNK SHOP