Wifi Modules

The M66 GSM module datasheet describes it as a compact, quad-band GSM/GPRS 2G module from Quectel, designed for low-power IoT applications with features like SMS, data transmission, and voice calls, utilizing a small LCC package and optimized for size-sensitive applications like wearables, automotive, and asset tracking; it supports multiple frequency bands (GSM850, EGSM900, DCS1800, PCS1900), has a low power consumption, and is suitable for harsh environments due to its extended temperature range