speedtalk mobile gsm sim card for gps tracking pet senior kid child car smart watch devices locators 6 months wireless service - usa canada & mexico roaming speedtalk mobile majority of <b>gsm gps tracker</b> today uses cellular technology to remotely communicate with these devices. <p>you will need a sim card to enable tracking services to work and communicate with the tracker remotely via the phone number associated with the sim card. some use text messaging to locate the tracker, other devices use data connection. either way, our service offer voice call, text and nationwide 4g lte data. <p><b>our service will work within the united states including north america (canada & mexico) roaming.</b> <p> check coverage at <b>stkmap</b> <p> <p> to activate please visit us at <b>activatespeedtalk</b>. <p><b>note:</b> after sim activation, it might take up to 24-hrs for the gprs and data settings to sync and update with your device. make sure you turned on the power in your device, in a good reception area. <p>our sim cards can be use with any gsm tracking device such as but not limited to: <p> <li>gps trackers <li>kid gps trackers <li>pet trackers<li>trackers for seniors <li>car alarm systems <li>smart watches <br><br><i>please note: 2g & 3g services might not be available in all areas due to carrier decommissioning/shutdown of these frequencies, speedtalk mobile recommends using 4g or newer devices for better service. existing speedtalk customers who are using the service on their 2g or 3g devices, can continue to purchase speedtalk products to refill/reup their existing accounts.</i><br><br><br>speedtalk mobile offers its services through subscription plans which auto-renew every 30 days. plan begins as soon as you activate your service. you’ll be charged the rate stated at the time of purchase, every month, until you cancel. there is no contract, cancellations can be made any time by contacting customer support. a valid credit card is required to cover overages in case you exceed the applicable voice, sms and data limits. to avoid overage charges, you should purchase the appropriate plan for your anticipated needs.