Brand Name: TOPK
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Style: Earbuds
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Vocalism Principle: Dynamic
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Control Button: Yes
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Active Noise-Cancellation: yes
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Communication: Wireless
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Volume Control: Yes
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Sensitivity: 90dBdB
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Wireless Type: Bluetooth
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Is wireless: Yes
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Support APP: Yes
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Function: Monitor Headphone
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Function: for Video Game
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Function: Common Headphone
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Function: For Mobile Phone
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Function: HiFi Headphone
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Function: Sport
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· With Microphone: Yes
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Impedance Range: up to 32 Ω
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Bluetooth Version: 5.0
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Model Number: F22
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· Headphone battery capacity: 50mAh
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Driver Diameter: 8mm
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· Charging Time: About 2 hours
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Charging box battery capacity: 300mAh
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· Charging Time: About 2 hours
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