2020 gps rename ap3 h1 chip wireless charging in-ear bluetooth earbuds with smart sensor phone pop-up earplugs sound quality

touch control feature 1.once short touch to play (pause) music / answer calling ; 2.double short touch for left (right) earphone to reduce (increase) volume ; 3.three short touch for left(right) earphone for next (last) music ; 4.take out of case for turn on and put back to case for turn off ; 5.switch between chinese and english: turn off the bluetooth, take out the headset, four times touch the right earbud, and then turn the phone bluetooth to connect.