About this itemBluetooth version:V5.3Frequency range:20Hz-20KHzEarbuds Battery:30mAhCharging Case Battery:300mAhPlay Back Time:~5h (volume at 70%)Conn..
Compact size, exquisite appearance, easy to carryUSB 3.0 port synchronous data transfer rate up to 5GbpsSupport TF card/memory card read and writePD 3..