<b>SPECIFICATION：</b><br> Earbuds size:42x16x5mm<br> Charging case size:104x60x24.2mm<br> Earphone charging:about 50 minutes<br> Music play time :about 4 hours<br> Talk time: about 5 hours<br> Stand-by time:about 30 hours<br> Answer/hang up:single press<br> Reject a call :single press<br> Play/pause the music :single press<br>