usbai CB-309 5.0 Wireless Bluetooth Headset Touch Digital Display ABS Material Small Portable With Charging Cable Earbuds Headphone


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??Battery LED Display  ??Unique intelligent digital display for easy check of battery capacity. Equipped charge faster and safer.

??Bluetooth 5.0??Compared with the previous Bluetooth V4.2 wireless earbuds. here you are getting 2x faster transmission speed more stable connectivity with no signal loss or music dropouts. 

??Simple To Use?? First step – open the charging case. Second step – turn on the Bluetooth of your phone and choose the earphone.

??Protable??Light weight, easy to carry, you can use it anytime anywhere, just enjoy your life.


Bluetooth version: 5.0

Voltage: 3.7V

Headphone material: ABS plastic

Charging time: 1H

Listening time: about 3 hours

Package Included:

1 pair of earphone

1 piece charging cable

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  • Brand Name: comfast
  • Style: In-ear
  • Certification: NONE
  • Vocalism Principle: Balanced Armature
  • Origin: CN(Origin)
  • Control Button: Yes
  • Active Noise-Cancellation: Yes
  • Communication: Wireless
  • Volume Control: No
  • Sensitivity: 86dB
  • Wireless Type: None
  • Is wireless: Yes
  • Max Output: 20mW
  • Support APP: Yes
  • Function: for Video Game
  • Function: Common Headphone
  • Function: For Mobile Phone
  • Function: HiFi Headphone
  • Function: Sport
  • Number Of Drivers: 2
  • Plug Type: NONE
  • Package List: User Manual
  • Package List: Charging case
  • Package List: Charging Cable
  • Impedance Range: up to 32 ?
  • Connectors: None
  • Model Number: CB-309
  • Earcups Type: Semi-open
  • Headphone Pads Material: Other
  • Bluetooth Version: 5.0
  • Codecs: NONE
  • Support Memory Card: No
  • Driver Diameter: 10mm
  • Resistance: 32??
  • Waterproof: Yes
  • Frequency Response Range: 20-20000Hz
  • Total Harmonic Distortion: 0.1%
  • With Microphone: Yes
  • Features: waterproof
  • Features: With Microphone
  • Features: Amazon Alexa Support
  • Features: Apple Siri Support
  • Features: Active Noice Cancelling
  • Features: Google Assistant Support
  • Charging Method: Charging case
  • Magnet Type: Other
  • Wholesale/Dropshipping: Support
  • More Information: Read the description
  • Any Problems: Please contact us first, thank you!

Additional information

Weight 0.4 kg

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