*bluetooth 5.3
*in-ear desigh
*hd audio
*round appearance design
*500mah charging ase
*simple gesture peration
*usb-c charging port
*noise reduction
*indicator display
*touch button
bluetooth version 5.3
transmission distance ≥10m
speaker type :φ13mm
receiver sensitivity(typ) ≦-86dbm
audio frequency:(s/n) ≥96db
frequency response: 50hz~10khz
earbuds battery capacity: 40mah
earbuds charging time about 1.5h
charging case battery capacity 500mah
charging case charging time 2h
music playing time about 7h
talk time about 5h
support bluetooth profile hfp/hsp/a2dp/avrcp
standby time it stands on standby for 4 months
when fully charged