This product presents with a serious risk of hearing loss because affected batches may emit feedback noise (measured up to 106 dBA) through the headset speakers. The likelihood of occurrence of this issue can be increased in cold ambient temperatures and with a depleted battery state. This product does not meet safety standards.
Model numbers:
MT14H418A-02 MT14H418A-35 MT14H418A-38 MT14H418A-86 MT14H418A-87 MT14H418A-90 Manufacturing period:
Between November 27 2025 and February 6 2026. Description:
Over the ear hearing protection and communications headset. Identifying Impacted Products Step 1:
To determine if your headset model is affected, locate the Model ID printed on the outside of the cup or the box label. Compare the Model ID on the cup to the list above. If the Model ID matches any in the table, continue to Step 2. If they do not match any number in the table, your product is not affected by this Notice. Step 2: Locate the manufacturing date (YYYY/MM) printed on the outside of the cup or the box label. If the headset manufacture date is during or between 2025/11 (11th month 2025) and 2026/02 (2nd month 2026), your product may be affected. Continue to Step 3.
Step 3: Locate the first 9-digits of the manufacturing identification number printed on the outside of the cup or the box label. If the headset identification number matches an ID in Table A, your product is affected.
Table A
108775721 109144338 109192458 09233313 109279617 109360936 108863341 109145831 109192862 109239367 109285367 109365614 109458072 109456621 109460871 109077741 109150424 109197373 109244468 109287901 109365615 109082396 109174022 109198474 109248672 109298189 109370555 109462455 109462457 109462457 109109939 109174023 109207131 109248673 109302476 109375025 109124149 109178217 109209709 109259266 109308224 109411650 109125200 109178218 109224666 109259267 109312449 109433818 109139789 109183912 109229134 109270477 109339849 109451206 109144337 109229138 109270479 109342506 109456621 109462457 Alternative Identification Method - Printed Circuit Board Assembly (PCBA) batch numbers: Affected products will have the following Printed Circuit Board Assembly batch numbers: 2547. 2549, 2550 and 2552.
Step 1: To remove sealing ring from the left cup (boom mic/keypad side), grab the ring and pull the ring outwards.
Step 2: When the ring is removed from the cup, also remove the foam that is placed inside the cup.
If you have bought this product stop using it immediately and return it to the distributor for a refund. | 
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