I've never seen this before. I opened an older model Roomba which I got for free (Roomba 692) and it had this sticker on the plastic covering the vacuum itself:
******* *** ******* **** ****** ** accepting *** ******* *********. **** **********, I'm *** **** ** **** ** still ******** ** *** ****** ********, but * **** ***** **** * manufacturer ****** ***** ** ****** ***** product **** ****. ** ***** *** there ** ** ****** ********* ** Roomba ********** ******* ** **, ********* projects **************(*********** *****-***** ******* ** ***** *******),****.** *********, *** ******.
* **** **** ** * ******** electronics ******* *** *** * ******** device, *** *'* ** ********** ** see **** ******** ***** **** *** of *** ******** *** ****** ** manufacturers ****** ******* **** *********** *** had ****-********** ****/****.
**** *** **** ********** **** ******? Or ********* *******?