There are voices to choose from in normal mode, including voices from various countries. Recording mode: you can record the sound you need or play it by voice. The volume can be adjusted in levels and the sound can be adjusted according to the location to meet needs. Humanized design, simple installation, no need professional installation, to use, infrared detection, available day and night, regardless of day or night High sensitivity, 2-7 meters detection distance. The sensing range can be adjusted freely Bracket activity range: 360° free rotation without dead angle, Weight: 0.29101018584 pounds, Manufacturer: Rtxbvg