The latest minihidden 8 antenna mobile phone shielding instrument in 2020, can act on a variety of signals, such as WIFI2.4G, GPS L1, LOJACK, Pocket, 2G, 3G, 4G and other types of smartphones, Android phones, tablets, iPhone, Windows Phone and other mobile phone power supplies, built-in nickel-metal hydride battery 2000mAH, work more than 2 hours.