Logitech Squeezebox Duet Controller and receiver

Rear of controller, wifi board on the left also sports an SD slot, accesible from battery compartment

Under the wifi board is where most of the action is...

Under the LCD - audio DAC and what I'm guessing is the accelerometer chip

A Multi-pin connector on bottom edge - covered by a rubber bung. Surprisingly large number of pins - I suspect many of these may be for factory test etc. and probably include  JTAG.

A little surprised to see 3 fuses (the green bits) - one for the battery, one for the charge.... maybe one for power via this bottom socket?

Receiver - a neat single PCB. U4 is Xilinx XC9536CL CPLD, U12 is Realtek RTL8201CP. No-name Chinese WLAN mini-PCI card with 2 plug-in antennas - would be no big deal to add an external antenna for more range if required...

Under the wifi slot - just a few PSU components. Sticky foam pads make wifi module rather hard to remove...

The only interesting thing on the underside is the provision for an IR receiver. The sideways orientation of the pads suggests it would use a light pipe to get its view of the front (The case material is not IR transparent - I checked!).