Categories: Headphones

Headphones B20 IPX8 Waterproof Bone-Conduction User Manual

B20 IPX8 Bone Conduction Headphone User Manual

Understand the headphone

How to wear

IPX8 waterproof (swimming, sweating, rain, washing face, showering, having a bath, etc)

★ Please note that the phone ’ s Bluetooth signal can not be transmitted underwater.


Charging and transmit music files

  1. Headphones comes with unique charging base
  2. Bring the charging base and charging contacts together as follows to charge or transmit files
  3. Always ensure the charging contacts and the charging base are clean to avoid bad contact

  1. The headset is connected to the computer through the data cable
  2. Open the external drive disk
  3. Drag the music file to the external drive
  4. Note: Support MP3 format

Wireless Headset controls

  1. On/Off: Press the “MFB ” for about 3 seconds
  2. Pairing:
    1. While the device is turned off, press and hold the Power Button for 3 seconds, at which point the Led Indicator will begin flashing in alternating red/blue and voice promotion “waiting for connection ”


  1. On the electronic device that you ’re pairing your headphones with, locate the Bluetooth menu and select the headphones
  2. Headphones will be connected within seconds and voice will prompt with the word “Device connected ”.
  3. Mode switching between Wireless Mode/MP3 Mode: Press the “ + ” and “ – ’ ’at the same time.
  4. Adjust volume:Click Volume “ + ” / Volume
  5. Move back to previous song: Press and hold “-’’Skip to next song: Press and hold “+”
  6. Pause/play music: Click the “MFB” once. The headphones will beep, and your music will pause/play
  7. Answer a call: Click the MFB once
  8. Reject a call: Press and hold the MFB
  9. How to control MP3 play: Click the to the single track, single play or Loop Playback


Wireless version: Wireless 4.2
Support profile: A2DP vl.3,AVRCP vl.5,HFP vl.6,HSP v1.2
Working frequency: 20HZ -20KHZ
Speaker Diameter: 16 mm
Speaker Impedance: 8 ohm
Speaker Power: 7mW
Battery: Polymer lithium battery, 200mAH
Music playback time: 4-5 hours
Talk time: 4-5 hours
Standby time: 120 hours
Charging time: 1.5 hours
Charging port: Charging contacts & charging base
Wireless transmission distance: 33 feet (free space)
Microphone: Built-in microphone
Microphone sensitivity: -38 dB
Headphone type: Bone conduction
Power display: IOS device
Main material: PC/ABS
Weight: 1.6 OZ
Dimensions: 4.48*3.24*1.41 inch
Built-in Memory: 8GB
Waterproof rating: IPX8

Tips for using this headphones for swimming

  1. Wear the headphones at the right position before you wear your swimming cap, so that the swimming cap will help to position the headphones
  2. Turn your headphone to MP3 mode for better music experience when swimming


  1. In addition to water, sweat, and other liquids, seawater is likely to damage the headset. Please avoid using this headset when swimming in the river or sea.
  2. When swimming, this headphone could not connect to your smartphone, please turn it to MP3 mode.
  3. Please mind the volume, do not turn it too loud in case it would hurt your

Package list

Bone conduction headphones* 1
Charging Dock* 1
User Manual* 1

Documents / Resources

Headphones B20 IPX8 Waterproof Bone-Conduction [pdf] User Manual
B20, IPX8

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