Battery type 1,5V Alkaline AA type LR6 (IEC)/15A (ANSI/NEDA)Number of batteries 4Battery operation time ~18 months (might vary in different conditions..
Energy-efficient monitor with a screen capacity of 1.7 "2.7-inch screen energy-saving monitor3. Two-way SIP v2.0 connectionGets energy through a 4.PoE..
Meets U.S. Military drop-test standardsSleek, lustrous exterior for tactile and visual appealA multifunctional button for auto backup and quick reconn..