“My last pair costs $4800, not chargeable. I bought this pair to see if I can get rid of changing battery. They work as well as the previous ones, the only difference is I need a few days to get used to them. Now I feel very good with the setting and they are even more comfortable. The charge last the whole day, and even longer. Just throw the devices into the charging base when not use and put them on ear whenever you want, more convenient than the line charger.”