Entrance Doorbell Infrared Motion Sensor Welcome Voice Prompt Alarm Chime for Shop

Feature: 1. There are two modes of A, B. A mode is full loop playback; B mode is single mode. Press the button to switch between A and B mode. 2. Built?in power amplifier, speaker power up to 1W/8 Ohm , adjustable in two?level volume, the sound is loud, more in line with your needs. 3. Has wide range of applications, such as indoor holiday decoration, shop. Can install in the front door, window frame, driveway and other places you like. 4. Support built?in FLASH playback, more convenient. 5. Support battery (not included) or USB power supply, which can bring you more convenience. Specification: Item Type: Entrance Doorbell Material: ABSColor: As the Picture Shown .Size: Approx. 9 x 6 x 2.5cm/3.5 x 2.4 x 1in Power Supply: 3 x AAA Battery (Not Included) or USB Cable Power Supply Induction Distance: less than 3cm Detection Angle: Arc 120 degrees (Ceiling Type) Memory Capacity: 4M Bytes Application: Welcome, Alarm, Voice Prompt Package List: 1 x Entrance Doorbell 1 x Installation Bracket1 x Installation Accessories1 x English Manual