Hey for the specs , I would give you the basic details -

Microcontroller - ATMega32
Stepper Motors - TEAC 5 1/2" floppy drive ones
Sensors - Ir Tx-Rx
No. of sensors - 5 for Virtuoso(II) and 8 for Neo
Battery Packs - 12V 2.1Ah for Virtuoso(II) and 6V 4.5Ah for Neo

so these are the basic details.