●Supports A2DP1.2/HFP1.6/HSP1.2/AVRCP1.4

●Auto power on and auto paring when take off the charging case

●Auto power off when put on the charging case

●Bluetooth Version: 5.0

●Built-in superior HD microphone, provide clear and loud sound

●Earbuds Battery capacity: 40mAh each one

●Work time:4 hours

●Stand-by time: 120 hours

●Charging time: 1-2 hours

●Charging Box Capacity:200mAh

●Certificate: CE/ROHS/REACH/FCC

●Optional colors: black, white,