usa canada mexico gsm sim card - rollover 750 text (sms) data (mb) 180-day wireless service speedtalk mobile designed for 4g gsm unlocked devices. usa nationwide coverage. canada and mexico roaming. <p><p><li><b>domestic & international roaming:</b> 4 cents/text | 4 cents/mb data.<p><p>activate via <b>activatespeedtalk.</b> recommended in us but can be activated abroad.<br><br><i>you can keep (rollover) your remaining balance if you refill your account before the current plan expires. if you do not refill before the expiration date, your remaining balance will be removed from your account. we rollover for 6 refill balances, any previous balance will be removed.</i> <br><br>you will not be able to exceed the allotted amount of voice or texts. if you exhaust your credits, you may purchase additional credits (cash cards) directly at <b>refillspeedtalk. </b><br><br>after sim activation, it may take up to 24 hours for the gprs and data settings to sync and update with your device. make sure to turn on your device in an area with good reception. <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>