AT Max International Instructional Video Part 2/3 Garrett AT Max Metal Detector with NEW wireless Z-Lynk pro-pointer AT, MS-3 wireless headphones and coil cover. Garrett AT MAX metal detector is Garrett's most versatile and advanced all-terrain VLF machine. It features increased detection depth, built-in Z-Lynk Wireless Technology, and many other improvements, AT MAX detector helps treasure hunters push their limits to the MAX! Garrett AT Max Metal Detector key features: Powerful. Wireless. NEW