mobile phone earphones

Color:   Black / White
Wireless version:   V5.3
Communication distance:   10m
Standby time:   300hours
Music time:   50 hours(70% of the volume)
Battery capacity:   450mAh/3.7V
Rated input:   DC5V-400mA
Rated consumption current:   10mA
Charging time:   1.5 hours
Frequency response range:   20Hz-20KHz
Charge interface:   Type-C
Compatibility:   Wireless audio devices
Weight:   190g