Features: 1. It is a welcome device, an anti-theft alarm, and an advertising promotion device, which supports recording and playback functions. 2. Applicable to all kinds of shops, upscale clubs, hotels, offices, factories, nursing homes, caregiver pager, and so on place. Specification: Function: (Voice Prompt) Intelligent Voice Mode, Sound Alarm Mode, Silent Alarm Mode, Recording Material: ABS Power supply mode: DC5v, 3 AAA dry batteries (not included) Volume: 3 levels adjustable Music: multiple built-in Recording: Repeatable recording for about 20 seconds, induction playback 2 times Sensing distance: 3-6 meters (affected by ambient temperature) Product List: 1* Door Chime Notes: Due to different lighting and screen settings, the product color may be slightly different from the picture. Due to the difference in manual measurement, please allow a 1-3cm difference in size. See more product details 1.Voice Prompt FunctionThe Door Chime has a voice prompt function. It has 18 kinds of voice prompts for you to choose from and also supports recording. 2.Easy to Switch Doorbell MusicA Doorbell Chime with the function of a doorbell is very practical. It has a variety of doorbell music and supports easy switching and volume adjustment. 3.Alarm SoundWireless Door Chime has an alarm mode, which is very practical; turn the audio into an alarm sound, when a thief breaks in, it will trigger an infrared sensor, and a loud alarm sound will deter the thief. 4.Convenient to InstallYou can place the Door Chime for Business When Entering directly on the desktop or counter, or install it on the wall with screws (not included). 5.Wide ApplicationsDoor Sensor Chime is suitable for families, hotels, shopping malls, convenience stores, shops, outlets, and other business places.