What is the oldest WORKING cell phones you still own?

Nowadays we all have relatively new devices. Lets see what still lives among us.

At the start of this thread, September 2015, what is the oldest WORKING device you still own.

Requirement:

~Your device age must be a minimum of 4 years +

~Take a video (use that new device:good:), showing the device working.
*In the video, include the software version installed*

~Please offer some history on your device.

~Please post only one device per post

Please keep this thread clean and friendly.