If you have any of the above Blackberry models, before you use a standard hands free headset with your 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 phone.
Easily installs; simply plug the audio adapter into your Blackberry cell phone audio jack; then plug in any 2.5mm, two ring headset into the audio adapter
One year warranty
Made by Blackberry
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Original Blackberry Curve 8300, 8310, 8320, 8330, Blackberry Pearl 8110, 8120, 8130 Hands Free 2.5 Audio Adapter