Wireless communication is integral to modern technology, supporting everything from mobile networks to IoT devices and satellite systems. To ensure optimal performance, reliability, and protection of wireless devices, choosing the right enclosure is crucial. These enclosures must not only provide mechanical protection but also preserve the integrity of the wireless signals. The material used in the enclosure and the machining processes employed can significantly affect the device’s functionality. In this article, we explore the top seven enclosure materials for wireless communication and the machining techniques that enhance their performance.