![Front Front](http://www.experimental-engineering.co.uk/wp-content/uploads/2011/07/framefront-300x225.jpg)
This is a cheap Sigma branded keychain photoframe. User buttons for power & selecting photos are on the left.
There are two white LEDs on the bottom edge that function as a torch as well.
![Display Display](http://www.experimental-engineering.co.uk/wp-content/uploads/2011/07/display-300x225.jpg)
Front of the unit removed, showing the LCD module. The USB jack is bottom left, next to the pair of white LEDs & above that is the 32kHz watch crystal that the CPU uses for timekeeping.
![Back Removed Back Removed](http://www.experimental-engineering.co.uk/wp-content/uploads/2011/07/back-removed-300x225.jpg)
Here the back has been removed showing the 3.7v Li-Ion cell used to provide power.
![Display Folded Back Display Folded Back](http://www.experimental-engineering.co.uk/wp-content/uploads/2011/07/display-removed-300x225.jpg)
Here the display has been removed from the PCB exposing the chipset.
![Chipset Chipset](http://www.experimental-engineering.co.uk/wp-content/uploads/2011/07/ics-225x300.jpg)
Here the CPU blob-top chip & a flash memory IC are visible. The CPU is a Sitronix ST2205U.