If you prefer to use a 2.5mm headset with your HTC First 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 HTC First phone.
Easily installs; simply plug the audio adapter into your HTC First cell phone audio jack; then plug in any 2.5mm, two ring headset into the audio adapter
Currently offered on: AT&T
All carriers including Alltel/ AT&T/ Sprint PCS/ T-Mobile and Verizon are trademarks of the respective companies
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