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BJBJ J50 TWS ENC Earbuds
Buetooth version:V5.4
Stand-by time:140 days
Talk time:4 hours
Music playtime:5-6 hours
Charging time:15hours
Charging voltage:DC5V
Frequency range:20-20000Hz
Transmission distance:10m-15m
Battery capacity:30mAh
Charging case:300mAh