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Quick Details

  • Brand Name: HENGLING
  • Model Number: BTE-520B
  • Style: In-Ear, In-Ear
  • Communication: Wireless, Wireless
  • Connectors: wireless
  • Use: Mobile Phone
  • Function: Bluetooth, Microphone, Noise Cancelling, Waterproof, Bluetooth, Microphone, Noise cancelling
  • Place of Origin: Guangdong, China (Mainland)
  • Color: Beige, Black, Blue, Gray, Green, Multi, Orange, Pink, Purple, Red, White, Yellow
  • Product name: HENGLING PATENT bluetooth earphonre
  • Bluetooth Version: V4.1+ CSR
  • Package: Color Box
  • Charging Time: about ONE hours
  • Standby time: 80 hours
  • Support: HSP/HFP/A2DP/AVRCP
  • Talking time: 6-7 hours

Packaging & Delivery

Packaging Details: color box
Delivery Detail: Shipped in 3 days after payment

HENGLING patent waterproof bluetooth headphones CSR4.0 Wireless Stereo,clear sounds Headphones Noise Cancelling Earbuds


Handfree Wireless bluetooth Stereo headset:


[Bluetooth CRS4.0 Chip]Easy pairing with smartphones, tablets and other Bluetooth enabled music devices; CRS4.0 Chip provides pure, CD-like crystal clear sounds via noise reduction and high-fidelity 3D stereo music.

[Strong Wireless Signal]You can enjoy skip-free music in a 10-meter working distance, even if use your music devices left/right side, above/below waist.

[Comfortable Fit with Sport Style]Exercise-proof & Sweatproof design guarantee 100% stable and comfortable wearing for running, cycling, Gym exercise and other outdoor sports.What's more,Ergonomic design enhances wearing comfort.

[Excellent Battery Performance]Up to 7 hours of continuous talking / 6 Hours music time and up to 80 hours of standby with 1 Hour charge, so you have less time charging and more time using.

[SOUNDLIVE Sound You Will Enjoy]Top-Brand Bluetooth for Smartphones of Italica.The sound quality is crystal clear, the highs are crisp, the mids are warm and pleasing and the bass is booming.


Excellent Music Quality with SOUNDLIVE Technology

Auto adjusting equalizer levels, more close to the acoustic effect of the wired headset which ensures less loss of the sound quality. With such SOUNDLIVE tech, Italica Swift features an excellent sound,especially the low sound density. Listen to your music like a true professional without sacrificing your looks!

Minimum Background Noise

CRS4.0 Digital noise reduction technology,intelligent filter ambient noise,make it more clear in calling and music.

Recreational Comfortable Design with LED light

Technical Ergonomics Design with medical earmuffs and 17g weight Earbuds,makes you feel more comfortable and stable.

Colorful breathing LED light make your live Unique!


1.Bluetooth Standard: Bluetooth V4.0
2.Chips: CRS4.0 high-end chip from CSR Plc
3.Frequency Range: 2.4GHz
4.Bluetooth Mode: Headset/handfree/A2DP/AVRCP
5.Operation Range: Up to 30 feet
6.Talk/Playing Time: Up to 6~7 hours
7.Standby Time: Up to 80 hours
8.Charging Time: 1 hour


HENGLING patent waterproof bluetooth headphones CSR4.0 Wireless Stereo,clear sounds Headphones Noise Cancelling Earbuds



    1. Power: Press the power button for 2-3 seconds, along with red and blue lights, boot into the back even state

    2. Power Pairing: Press the power button for 5-6 seconds, along with red and blue lights, after flashing red and blue alternately into pairing mode

    3. VOL +: Press the volume + button for 2 seconds, add up the volume a maximum sound, a warning sound

    4. VOL-: Press Volume - button for 2 seconds, cut down the volume a minimum sound, a warning sound

    5. Previous: Press VOL+

    6. Next: Press VOL-

    7. Telephone Answering: when to call, press the power button

    8. Refused to answer: when to call, press the power button for 2 seconds

    9. Redial last telephone number: double-click on the standby power button

10. Charging: red light when charging, fully charged blue lights 

Package Contents

1x Stereo Bluetooth Headset

1 x micro USB charge cable

1 x User manual

3 x ear caps (large,midium,small)

1 x color box



Competitive advantages  

1. Over 5 years of products exports experience.
2. Over 5 years of OEM/ODM expereience.
3. Full production Capability: Design-Molding-Injection-Painting-SMT-Assembly-Testing-Delivery-Service.
4. Low defects: Controlling defective products within 1%.
5. Fast delivery: 15 days for orders under 20,000pcs.
6. Long warranty: 12 months


HENGLING patent waterproof bluetooth headphones CSR4.0 Wireless Stereo,clear sounds Headphones Noise Cancelling Earbuds

HENGLING patent waterproof bluetooth headphones CSR4.0 Wireless Stereo,clear sounds Headphones Noise Cancelling Earbuds

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