mini PIR motion sensor activated door bell speaker

详情

mini  PIR motion  sensor activated  door bell speaker

• Small and exquisite, high quality MP3 voice playback, beautiful sound.
• Eight-level volume for option.
• Door magnetic induction triggers to play voice; induction distance is 2 cm. 
• Adopt WT***3 voice chip; welcome mode(A and B mode) and alarm mode are alternative(trigger to play the first voice regularly).
• Standard *2M SPI-FLASH; can change capacity according to customers requirements.
• A is to choose the next one and switch between A and B mode; B is to adjust volume and switch mode between trigger with interruption and trigger without interruption.
• A mode is all loop play; B mode is single playback. 
• Power down mode without memory; default mode is B mode, trigger with interruption.
• Through PC software, direct to update voice by connecting USB cable with computer.
• Adopt 3 AAA batteries or USB to supply power, choosing either of them. When downloading voice, take batteries out first and then connect with computer to replace voice in case of danger. Built-in 8 ohm 1w speaker.