Along with the advanced features of the standard 540 , including a red backlit display, headphones, rain cover, and armband, the Vanquish offers three preset detection modes in addition to Pinpoint and All Metal modes, taking detection to the next level. With the added control of iron exclusion and 25 discrimination segments , you have precise control over which metals you want to detect. While the All Metal shortcut button lets you quickly detect everything. Multi-IQ Technology in the Vanquish 540 Pro The Vanquish 540 Pro operates on three frequencies, low, medium, and high, at the same time, giving you the best of what you’re looking for. What sets Multi-IQ apart from other so-called multi-frequency systems is that it’s truly simultaneous multi-frequency. This means you’re transmitting and receiving on all supported frequencies at the same time rather than selecting just one frequency from a specific range to use at any given time, which is best described as a switchable frequency. With Minelab's multiple simultaneous frequencies, it's like using all of your files in one scan of your device.