Built-in microphone yes
\nRange of playback frequencies 20-20000 Hz
\nBattery capacity of one earbud 30 mAh
\nBattery capacity of the case 350 mAh
\nCharging time of the box ~1 hour
\nHeadphone charging time ~1 hour
\nStandby time up to 200 hours
\nOperating time in music/talk mode up to 4 hours
\nDimensions 53.8*44.3*21.4mm
\nWeight 47g