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Bluetooth version Bluetooth Ver.No: V5.0+EDR
Radio carrier frequency: 2402MHz-2480MHz
Audio frequency response range: 20Hz-20KHz
Transmission range Wireless Range: ≥10m
Power voltage: 3.3?4.2V
Work translation: 3.7V ~ 4.2V
Charging Voltage: 5V
Charging Current: 50mA
Standby current Standby: 0.5mA
BT Call Working Current: 18mA
Connect Bluetooth to listen to music. Working current BT Music Current: 20mA
Standby Time: 240H
Talk Time: ≥5H
Bluetooth headset listening music time BT Music Play Time: ≥4-5H
Charging Time: 1H
Earphone Battery Capacity: 45mAh (Polymer Lithium Battery)
Charging Case battery capacity: 1800mah (18650 Polymer Lithium Battery)
Dual microphone Dual microphone: yes
Speakers/Speaker: 8mm, 32Ω copper ring (Copper ring)
Product size: 8*5*3cm