... For more details,please kindly contact with me!motion sensor/pir sensor/motion detectorLet the product speak itself. Not forget ... .components:PCB,speaker,plastic box,battery house,IC,microphone,AA or AAA battery 5.power supply:AG13,AG10 ... ,AG3 button cell,AA or AAA battery 6.speaker material:ABS(GREEN) 7.speaker size ... of playing12.OEM/ODM are welcome Motion sensor doorbell/Wireless doorbell