Outdoor Pool Phone Wireless Emergency Call Box - CELL PHONE TECHNOLOGY (NO PHONE LINE NEEDED) 911 Only Speaker Phone - Weatherproof Outdoor Cabinet Enclosure NO MONTHLY CONTRACTS! NO MONTHLY PHONE BILLS! ALLOWS FOR FREE EMERGENCY CALLS ONLY!! AAA Battery Powered. Replace batteries once a year Two button Operation. 1 button to turn on, then Big Red button will light up and you press it to call out. Clearly Marked! Easy operation Secure side latch with 10 tamper proof seals which allows for emergency use only Nema 4X type water proof enclosure