Compatible with Cyber-Shot models released from August 2006.
Runs on one AA battery for up to 14 hours.
Records location log data of up to 1 month.
Connects to PC using the USB cable and software supplied.
Cyber-Shot viewer needs to be upgraded with the included GPS-CS1 software.
Light weight - 55g (without battery).
Supplied with a carabiner for easy carrying.
Size (H)3.6, (W)8.7, (D)3.6cm.
I know that some places do have stock, as I just purchased one from Thurrock Lakeside Retail Park. This is a good price, if you want to geo-tag your digital photos. A great little gadget at half price.