I have been using this item for 7 days for a typical 3 hours regular and there is still some battery left.
Great call sound quality at this cost range.
Build quality - 4.5/5
Great harmony between bass and music which feels good to ears.
Bluetooth range somewhere in the range of headphones and telephone is great
pros of this headphone is "Cost". You cant beat the cost with other headphone with same quality.
Fits well in the ears. Likewise gave numerous buds for various fitting.