What type of sound device is being used in this sentence? which sounds are being repeated?
" let freedom ring from every hill and molehill of mississippi. from every mountainside, let freedom ring".

Sound devices are commonly used by poets to effectively convey the meaning of the poem. In the given lines above, the type of sound device that is being used is onomatopoeia, this is because of the word "ring". Onomatopoeia is the formation of words with the use of sounds. The sounds that are being repeated in the line is "ring". Hope this helps.