Aloha there at ringtone download service Audiko.net, where you may search for the best ringtones for your phone. Today we have a ringtone of “Knock” by Samsung as well as 6507 other ringtones by Samsung. You can listen to all 10 Samsung – “Knock” ringtone variations available here and download it for free to your computer. You can also search for other 15 albums produced by Samsung for all time. “Knock” is referred to , and you can download a huge amount of artists absolutely for free. And finally, we have collected lyrics for this track and you can view it here as well. So feel free to browse, listen, download ringtones at Audiko.net. Make your phone sound cool!