The sound quality is very good and the highs and lows are well balanced out of the box as well as the battery life lasting for about 5 hours continuous use at full volume. The charging case can not only charge for the earbuds but also a carry box to keep your earbuds safety in your pockets or bags when you are on the way.
Bluetooth chip: qcc3020
waterproof level: ipx4
bluetooth: 5.0
audio codec: sbc,aptx
working range: 33 feet(10m)
battery capacity: 600mah(case)
charging time: 3.5 hours
standby time: 150 hours
playtime time: 30 hours