- Link Labs is a leading innovator in low-power, wide-area (LPWA) network technologies for the Internet of Things (IoT). Link Labs' Symphony Link provides best-in-class long-range, low cost, low power connectivity and a complete end-to-end IoT solution. Link Labs offers a complete line of transceiver modules, repeaters, gateways and base stations. These devices are FCC certified for operation in the 915 MHz ISM band and ETSI certified for use in the 868 MHz band but are capable of licensed or unlicensed deployment from 137 MHz-1020 MHz.