User Agent String.Com 

User Agent String explained :

Opera Mobile 10.00
Opera	Based on Opera
9.80	Opera version 9.80 -> old version, for compatiblity reasons only. See Version below
Linux i686	Operating System: Linux running on a Intel Pentium Pro CPU
Opera Mobi	Name : Opera Mobile
1038	Build number
U	Security values: N for no security U for strong security I for weak security
en	Language Tag, indicates the language for which the client had been localized (e.g. menus and buttons in the user interface) en = English
Presto	Layout engine for Opera
2.5.24	Presto version
Version	Browser version
10.00	Version 10.00
Description:	Browser for mobile devices
First visit:	2010.05.12 01:24
Last visit:	2019.04.13 07:04
All Opera Mobile user agent strings