This little modem runs on two AAA batteries! It's actually somewhat awesome to hear it chirp when making a connection. The software, MultiMail is OK but does not support file attachments to email. A better free Internet software suite is Eudora for the Palm. Eudora also supports Web browsing. You can hotsync your Eudora email for the Palm with the Eudora email for the PC.The modem is only 3300 baud but that is adequate for email and occasional Web browsing. Over all, a pretty good value.