Files can be sent to the mobile phone by direct connection (e.g., USB cable), Bluetooth, Bob Marley ringtones, or e-mail, however, most ring tone makers have adopted a "one size fits all" strategy of downloading through the Internet; while appealing to the lowest common denominator, this method usually results in charges to the user for Internet time used on their mobile phones.System navigation is primarily accomplished by a Motorhead ringtones in the middle of the device (older devices used a track wheel on the side).