distributed by Technical Storage Temperature -4°F to 140°F (-20°C to 70°C) 10% to 90%, non-condensing General Dimensions 140mmH×115mmW×25mmD /5.51’’W×4.53’’H×0.98’’D Mass (Main unit) 0.9Kg / 1.98lb (Pairs) Certification CE, FCC, RoHS 6