Get two- battery life, even at long range — B's patented chip technology unlocks up to two s of battery life when used with a Sync Module XR and Energizer Lithium AA batteries (both included).

Get two- battery life, even at long range — B's patented chip technology unlocks up to two s of battery life when used with a Sync Module XR and Energizer Lithium AA batteries (both included).

Get two-year battery life, even at long range Blink's patented chip technology unlocks up to two years of battery life when used with a Sync Module XR and Energizer Lithium AA batteries (both included).

Get two-year battery life, even at long range — Blink's patented chip technology unlocks up to two years of battery life when used with a Sync Module XR and Energizer Lithium AA batteries (both included).

Brand new. 4 cameras, only 3 wires.