The 5600 Miles Upgraded TV Antenna is a digital HD antenna designed for indoor use. It features a magnetic base for easy installation and 360-degree reception capabilities. The antenna is made of ABS plastic and has a solid dish surface, with an impedance of 75 Ω. With a gain of 30dBI and built-in amplifier, this TV antenna can provide clear and strong HD TV signals for a seamless viewing experience. Perfect for both indoor and outdoor use, this portable antenna is an ideal choice for enhancing your TV signal reception.