(1) Ultra-small charging warehouse can be used in one ear and two ears, 5.0 chip, medium volume can be used for 5-6 hours, high volume can be used for 3-4 hours, with charging warehouse alternately can be used for 20 hours;

(2) no flash, hiding in the ear can be cut songs, intelligent boot pairing, more stable connection between voice and song;

(3) support Chinese-English switching, dragging two functions, with warm voice prompts.