The audio adapter is designed for the Blackberry Q10:
If you prefer to use a 2.5mm headset with your Blackberry Q10 cell phone, you will need to plug in the 2.5mm audio adapter in order for the headset to work. Just plug this audio adapter into your cell phone to convert the audio. This adapter allows you to use a 2.5 headset with your Blackberry Q10 phone.
Easily installs; simply plug the audio adapter into your Blackberry Q10 cell phone audio jack; then plug in any 2.5mm, two ring headset into the audio adapter
Currently offered on: Sprint, Verizon, Tmobile and AT&T
All carriers including Alltel/ AT&T/ Sprint PCS/ T-Mobile and Verizon are trademarks of the respective companies
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Original Blackberry Q10 Hands Free 2.5 Audio Adapter