Frequency range 1.976 to 4.022 ghz; isolation 20 db; vswr max 1.20; max insertion loss 0.2 db; max amplitude balance porm 0.5 db; max phase balance porm 1.5 deg; impedence 50 ohms; power split 3 db ; max input power 25 dbm; 1.69 in. Lg; 0.5 in. W; 0.38 in. H; four sma female connectors; operating temp 0 to 70 degrees c