Branded Used Earbuds ZERO-TX with boxThe ZERO TX charging case is powerful despite its compact format. You can recharge the earphones up to 4 times, which gives a total playtime of a full 25 hours. The playtime on a single charge is +5 hours. You get helped by the LED lights at the front of the charging case where you clearly can see the battery level during the charging process, since each LED represent 25% and when all the LED: s are shining the case is fully charged. Light weight