User's Guide

ManualsBrandsKO-STAR DEVELOPMENT ManualsAudio EquipmentBluetooth headphones

Manual

Congratulations on your purchase and thank you for your use of our Bluetooth Active Noise Cancelling

Headset. In order to start quickly, please read the user guide carefully.

Caution

1. Please turn off the headset and put it into box to avoid damage, scratches or bracket deformation when

long time no use. In order to prolong the battery service life, please charge every 6 months.

2. Please charge at first if the headset is left unused for long time.

3. The battery of headset is original and please don’t change it by yourself.

4. Please keep the headset under dry place.

5. Please don’t put this product into the environment with temperature over than 40℃ or into fire to avoid

battery blast accident.

6. Please don’t bent or twist the bracket to avoid deformation.

7. Please don’t tear down ear-cushions by un-professional person.

8. Don’t adjust the volume to a very high level and continued play. If tinnitus occurs, please turn the volume

down or stop playing, do not turn the volume up suddenly. Please slowly turn up the volume to avoid

hearing damage caused by high volume.

9. Do not use the headset in dangerous place or place where cannot hear the outside sound.

Included:

The headset contains the following parts:

Bluetooth Active Noise Cancelling Headset X 1

Manual X 1

3.5mm – USB C audio Cable X 1

USB C Charging Cable X 1

Carry Case X1

Charge the Battery:

The headset contains a USB C charging cable that can be connected to your computer or other device made

for USB charging. Plug the USB C end of the included USB C cable into the USB C port charge connector

under the left ear-cap of the headphone. Plug the other end into a USB port on your computer or other

devices made for USB charging. The indicator light will be red while charging. Once fully charged, the

indicator light will turn off. Charge time is about 1.5 hours on an empty battery.

Active Noise Cancelling On:

Hold the ANC button for 1 second. Green LED light will turn on. The ANC function is available at both

Wired and Wireless condition.

Summary of content (4 pages)

PAGE 1
Manual Congratulations on your purchase and thank you for your use of our Bluetooth Active Noise Cancelling Headset. In order to start quickly, please read the user guide carefully. Caution 1. Please turn off the headset and put it into box to avoid damage, scratches or bracket deformation when long time no use. In order to prolong the battery service life, please charge every 6 months. 2. Please charge at first if the headset is left unused for long time. 3.
PAGE 2
Active Noise Cancelling Off: Hold the ANC button for 1 second. Green LED light will turn off. The ANC function must be switched off by manual operation. Bluetooth Switch On: To switch on, press and hold the MFB about 3 seconds, blue light on, there is a tone “Power on, pairing”, The headset enters Bluetooth searching mode. Bluetooth Switch Off: To switch off, press and hold the MFB about 3 seconds, there is a tone “Power off”. Pairing: 1. Ensure that your phone or Bluetooth device is switched on. 2.
PAGE 3
Low Battery Warning: At power on condition, when battery voltage is lower than 3.2V, there will be a warning “Please charge to prevent damage to the battery” every 60 seconds. Specification: Driver unit: 40mm Impedance: 32Ω Frequency Response: 20Hz-20KHz Bluetooth version: V5.0 Active noise reduction: up to 20-25 dB Radio Frequency coverage: 2.402GHZ~2.480GHZ Transmit Range: about 10m (barrier free) Codec support: AAC, SBC, aptX，aptX HD, aptX low latency Battery: Rechargeable li-ion battery; 3.
PAGE 4
-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 Changes or modifications not expressly approved by the party responsible for compliance could void the use r's authority to operate the equipment. This device complies with Part 15 of the FCC Rules.