PAGING & CALL FUNCTION FROM BASE STATION; PLL-STABILIZED TRANSMISSION TECHNOLOGY; EXTENDED RECEPTION RANGE UP TO 164 FT; AUTO-TUNING; ON-STAND CHARGING; AUTO POWER ON/OFF TRANSMITTER; 40MM DRIVERS; FREQ RESP: 25 HZ–13 KHZ; UP TO 10 HOURS OF BATTERY LIFE; INCLUDES 2 NIMH RECHARGEABLE BATTERIES, AC ADAPTER, 2 CONNECTION CABLES & PLUG ADAPTER; WEIGHT: 8.82 OZ