Overview: All used SMD compinents & high-density intefrated circuited composed of advanced, samll, easy to carry, easy to operate, stable & so on Machine priduction process strictly follow the ISO900 quality system, stable & reliable, strengthen the trust of the ideal of information security products Specifications: Product (H&-held shieding device host a station):9.5 x 4.5 x 1.9cm Weight: 0.1kg Charger:AC 110V-250V built-in battery:3.7V 1000m A/h