Roule&reg; RL-03M 7" High Definition Color Video Camera Intercoms Entry Access Control System Door Phone Doorbell Door Viewer Night Vision Home Security Surveillance Waterproof Damage-proof/ Comes with an adaptor and 49 ft cacble for do-it-yourslef, 16 differenwt chord melodies 7" TFT high definition screen with low power consumption, no radiation, two way talking. Ultra thin designed indoor unit with touch pad. Electronic door lock release function. Water-proof, damage-proof, oxidation-proof and abrasion-proof zinc alloy panel outdoor unit. Outdoor gate unlock control function.