Smart Bluetooth headphones bass denoise support TF Card FM Radio Function wired+ wireless HD call Voice prompt Ergonomic design headsets

Description

Reminder: 1. Use the volume of 1/3 of normal listening intensity to drive earphones 12 hours to 24 hours. 2. Use the volume of 2/3 of the normal listening intensity to drive the earphone 12 hours. 3, use normal listening intensity to drive headphones for 72 hours. 4. Use the volume of 3/4 of the normal listening intensity to drive the earphone 24 hours. 5, enter the normal use stage 6, when the normal use of the volume is not too big, at the highest volume of 2/3 can be.