... 10 mm 3.CE, FCC& RoHS 4.OEM / OD 2.4g mini wireless keyboard with multi-touch (mini keyboard, micro keyboard) MULTI-Touch ... )1 to many matching (1 dongle to multiple keyboards)Minimum System RequirementsMac OS, Linux,IOS,Android, Windows (all) with USB port ... )1 to many matching (1 dongle to multiple keyboards) Minimum System RequirementsMac OS, Linux,IOS,Android, Windows (all) with USB port ...