Features: 1) Wrist watch style with adjustable band 2) 20FRS / GMRS channels 3) Up to 1.5 mile range 4) Auto battery saving 5) Internal VO x channels 6) Operating frequency: UHF 462.5500 - 467.7125MHz 7) Power source: 3.7V Li-ion battery Inner packing: 1pc/box Outer packing: 20pcs/ctn Carton dimensions: 35.6 x 34.9 x 25cm N.W.: 10kg G.W.: 10.5kg