Corsran Technology B20 Bone Conduction Bluetooth Headsets User Manual

USER MANUAL

Understand the headphone

How to wear

 Charging and transmitting music files

1. Headphones come with the 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 is clean to avoid bad contact

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 The indicator will begin flashing in alternating red/blue and voice promotion “waiting for connection”
   (2) On the electronic device that you’re pairing your headphones with, locate the Bluetooth menu and select the headphones
   (3) Headphones will be connected within seconds and the 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 the previous song: Press and hold “-” Skip to the 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

Specifications:

Wireless version: Wireless 4.2
Support profile: A2DP v1.3, AVRCP v1.5, HFP v1.6, HSP v1.2
Working frequency: 20HZ –20KHZ
Speaker Diameter: 16 mm
Speaker  Impedance: 8 ohms
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: 4.483.241.41 inch
Built-in Memory: 8GB
Waterproof rating: IPX8

Tips for using these headphones for swimming

1. Wear the headphones in 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 a better music experience when swimming

Cautions

1. Liquid except for water, sweat, such as salty water may lead to damage to the headphone. Please avoid using these headphones when swimming in the river or in a sea
2. When swimming, these headphones 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 hearing ability.

Package list

Bone conduction headphones1
Charging Dock1 User Manual*1
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
This device may not cause harmful interference, and
This device must accept any interference received, including interference that may cause undesired operation.
Warning: Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help.
RF warning statement:
The device has been evaluated to meet general RF exposure requirements. The device can be used in portable exposure conditions without restriction.

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