rhoticity
Northern Cities Vowel Shift (in some areas)
cot–caught merger (in some areas)
distinct pronunciation of 'bag' and 'beg'
distinct short-a split (in some areas)
flapping of 't' and 'd' between vowels
fronted 'o' in words like 'boat' (in some areas)
merger of 'Mary', 'marry', and 'merry'
use of 'needs washed' construction
use of 'pop' for soft drink
use of 'you guys' as second person plural
relatively neutral accent (perceived as 'General American')