Here you can listen to and download the Sixteen Tons Of Pressure ringtone for free. Original song by O.B.F featuring Charlie P. You can choose from 8 versions between 13 and 47 seconds. Tags: slow and hip-hop. Click a tag below to see more ringtones like this. Android users need the .MP3 file, iPhone users need the .M4R file. Both are free. More ringtones by O.B.F are on the artist page, the link is under the title.