Napster Inc and Dwango Wireless are joining forces to offer music ringtones to US customers.

Napstertones will cost between $1.99 to $2.99 per ringtone. A huge 70 million Cingular and T-Mobile Subscriber base can receive the ringtones on the network.

"As consumers in North America increasingly embrace personalized content on their mobile devices, digital music providers such as Napster are perfectly positioned to offer compelling content to wireless subscribers," said Alexander U. Conrad, president and COO, Dwango Wireless.

"The Napster brand resonates with music lovers everywhere and we look forward to a continuing partnership that delivers the best in mobile media entertainment."