... -performance waterproof chassis 2) Application in outdoor 3) IP65 GSM outdoor repeater / GSM Cell phone booster:1) Output from 33dbm to 37dbm ... , gain from 80db to 90db, works on any of GSM, DCS, CDMA, PCS and WCDMA system; maintain safe and specific ... , extended phone battery life.6)LED indicates power and working status.7) Available models: C33C-GSM, C33C-CDMA, C33C-DCS, C33C-PCS ...