APE2500 01.Display one groups of five-digit.Can speech broadcast operation,with voice reporting function APE560 01.Equipped with waterproof base * 02.Each pager can set different shord music. Twelve beautiful chord music 02.Stable login mode * 03.With a 999 call extension,it can be displayed in English or figures 03.Anti-temperature and humidity changes * 04.The display time length of the call number can be set arbitrarily. 04.The number can be changed optionally with strong re-use ability * APE2500 05.Length of call sound can be selected