The SPIRO® SQUARE uses the natural nanomagnetic properties of the SPIRO® material (contained within the card) to function as a passive filter for high-frequency telecommunications waves. With an action range of 8 feet (2.4 meters) radius, it is 2.3 times more powerful than the SPIRO® CARD, and it can handle the emissions from up to 7 different devices at the same time. To use, simply place the square near the devices. This is ideal for IT personnel or people who use multiple electronics. This filter has been found to not affect the performance of the devices it is used with; on the contrary, laboratory tests have shown that it is fully compatible with them, optimizes their operation, and lengthens their useful life.