Video door phone DP-705RW has 7 inch TFT LCD screen, time and date display, 2.4 GHz digital wireless frequency and encryption technology, up to 150 meter wireless distance, auto IR night vision, snapshot function, built-in memory with 100 pcs photo capacity, 16 chord melodies, adjustable intercom volume and melody volume, rechargeable built-in battery via mini USB, rainproof design.