.... Features an ergonomic design, each wireless earbud only weighs 3.3... hours of comfortable wear. True wireless earbuds with 10mm drivers deliver crystal... with the Otium's unique advanced Bluetooth 5.0 technology.Moreover,the earbuds supports... Playtime & Portable Charging Case. Wireless Earbuds offer 4-5 hours of ... area of the earphones.E23 earbuds are easily compatible with smartphones ...