Automatic Switching Between Verizon, AT&T, and T-Mobile: TALKSIM SIM cards deliver high-speed 4G LTE services by automatically selecting the optimal carrier among Verizon, AT&T, and T-Mobile to ensure the best signal strength. Please note that TALKSIM is solely dedicated to data services and does not enable voice or text (phone numbers are not included) | Includes 1.1GB of trial data (30 days): Enter the APN (linksnet) and enable roaming mode to use the trial data. No additional data purchase is required to utilize the trial data. Please note that TALKSIM provides data services only and does not support voice or SMS (no phone number provided) | Traveling in the EU 27 and UK: TALKSIM's tri-network SIM card is primarily for use in the U.S. and supports 27 EU countries as well as the UK, including: Austria, Denmark, Sweden, Finland, Poland, Portugal, the Netherlands, Belgium, Greece, Hungary, Croatia, Romania, the Czech Republic, Slovakia, Lithuania, Latvia, Estonia, Luxembourg, Malta, Cyprus, Bulgaria, and Slovenia | Flexible Plans & No Hidden Fees:TALKSIM offers adaptable subscription plans without the hassle of contracts, credit checks, activation fees, pre-activation requests, insertion fees, or personal identification requirements. Benefit from complete transparency with no hidden charges or taxes. The SIM card remains valid for 12 months when inactive, and you can unsubscribe at any time with ease | Compatibility:This versatile US prepaid SIM card is perfect for a wide range of 4G IoT devices, including security cameras, gaming devices, tracking systems, car/pet GPS trackers, router modems, mobile hotspots, smartwatches, smartphones, tablets, 4G PoC walkie-talkies, and Android radios. Our SIM cards are available in three formats: nano, micro, and standard | We're Here to Help Anytime:If you have any questions, feel free to share your ICCID (the 20-digit number on the back of the card) along with your inquiries, and TALKSIM will make every effort to assist you