◆Size: 13.8*5.9*2.0 in (350 *150 *50mm) ◆Use a Power Supply Adapter APE2600 ◆Display two groups of three-digit and store 10 numbers and scrolling display ◆Each pager can set a different chord music (12 beautiful chord music, with voice reporting function), The speakers can be connected ◆With a 999 call extension, can be displayed simultaneously in English or figures ◆Size: 13.8*5.9*2.0 in (350 *150 *50mm) ◆Use a Power Supply Adapter