The LPN1736. "Hands free" scanning means both hands are free to the handle items with bar codes. There is no need to pick up the scanner to scan items. However, the small size and extremely lightweight (less than 7.2 ounces) means the OPM-1736 is not too large or heavy to handle.
Full specifications (PDF)
Manufacturer part number: LPN1736RU1S-K90