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