... to 90db, works on any of GSM, DCS, CDMA, PCS and WCDMA system; maintain safe and specific output ... handheld devices throughout a building can benefit from a wireless repeater, extended phone battery life.6)LED indicates ... status.7) Available models: C33C-GSM, C33C-CDMA, C33C-DCS, C33C-PCS, C33C-WCDMA C37C-GSM, ... C33C-CDMA, C33C-DCS, C33C-PCS, C33C-WCDMA GSM outdoor ...