Wilson Electronics 812201 GSM-TDMA Amplifier

Wilson dual band 824-894 MHz (Cellular) 1850-1990 MHz (PCS) direct connection bi-directional amplifier provides up to 3 watts maximum output power with automatic gain control and a protection circuit for cell system overload. Designed for GSM/TDMA systems only. Compatible with all US GSM/TDMA (Cingular, T-Mobile etc). Not compatible with CDMA (Sprint PCS, Verizon, US Cellular, Alltel, Midwest Wireless or iDEN, Southern LINC) systems.

Connects directly to cellphone with a phone adapter (not included)
Power control logic ensures maximum output power is within cellular standards
FME male connectors
Includes 6' phone adapter extension cable with FME female ends. Purchase outside antenna and phone specific adapter cable separately
Significantly increases your cellphone's range on send and receive
Designed for GSM/TDMA systems only
FCC type accepted