You must have SIM card from a GSM carrier. You will be responsible for all charges billed by your cellular provider.
The included SIM comes with $10 of airtime. Each location report is sent using one text message. Text messages cost 10-15 cents each. When you have used all of the time on the prepaid card, the tracker will stop reporting. You can add/check airtime by contacting T-Mobile at 877-778-2106 over the phone or add time by the web by clicking HERE or if you have an ATT card please call 800-901-9878 once you have activated your account or add time by the web by clicking HERE.
$19.95 per month or
$149.95 per year subscription.