Nice to meet you on Audiko.net! All you need is to download a free acoustic cover ringtones for your iPhone or mobile. Elect your favorite moments from your favorite piece of music - Christina Perri - A Thousand Years (Acoustic Cover by. Richa, About a Girl - Acoustic Instrumental Nirvana Cover, Fields of Gold - acoustic guitar cover, or any other track. On Audiko you can have your ringer both in the MP3 and m4a formats, supported by both mobile phones and iPhones. Just select a track, and choose free acoustic cover ringtones download option.