Compared to a few years ago, there are more electronic devices that come directly into the human body, such as mobile phones, smartphones, Bluetooth, portable music devices, and moreover, due to the popularity of clothing that generates static electricity. MAXminiV is an electromagnetic wave blocker sheet combined with two types of copper wires. The two types of copper wire bases spread the electromagnetic wave received from the device through the fractal pattern, and concentrate on the center, so you can expect to eliminate electromagnetic waves. The two types of copper wire foundations are associated with the photo positive film and negative film and can be treated with electromagnetic waves that cannot be processed by either copper wire base. As a result, you can expect better electromagnetic wave processing function than using one fractal pattern. Product Contents: (Contents per 3-piece set); Max mini V x 1; Device protective transparent film x 2; Size: MAX mini V: 4.0 x 0.8 inches (102 x 20 mm); Device protective transparent film: 4.7 x 1.6 inches (120 x 40 mm); Material: MAX mini V: Copper, adhesive sheet, transparent film for device protection: PET *Please note: For accident or loss of data when using this product, we are not responsible for any circumstances. We are not responsible Please be aware of Please do not use this product for any purpose other than its intended purpose. Specifications and appearance are subject to change without prior notice. Do not use or store in places near fire, high temperature or humidity. Keep out of reach of children.