Model: VK-TWS-09
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Technical Specifications
Bluetooth version: Bluetooth V5.3
Chipset:JL6973D
Audio codec:AAC / SBC
Working distance:≥10 meter (open space with no obstacle)
Speaker：φ13
Frequency range: 20Hz-20000Hz
Battery capacity for earbuds:35mAh
Battery capacity for charging case:230mAh
Playing time：5 hours ,80% Volume (Approx.)-For 27 mAh earbud
Standby time(Earbuds)：140 hours
Charging time for earbuds:1H
Charging time for case:1.5H
Charging input：5V 230mA
Charging interface: type-c
Size:50.0x38.4x22.0mm
Weight: 27g