Product Name: Infrared Motion Sensor Wireless Alarm Doorbell Model NO.: 622-108 Receive Frequency: 433.92MHz Alarm Volume (within 1m): ?80dB Transmission Mode: Wireless Working Principle: Infrared Sensor Application: Indoor Certification: CE, FCC, RoHS Working Mode: Active Signal Transmission: Wireless Alarm Type: Active Infrared Intrusion Detector Carton Size: 50x31X29cm Trademark: Longriver Transport Package: 48units/CTN Specification: ABS Origin: China HS Code: 8531100000 Product Description INFRARED SENSOR REMOTE ALARMsensor: 9V battery(not included)Receiver:2xAA battery(not included)*It detects almost every movements, and sends a signal to the receiver from up to 400 feet away. *Witch FCC/CE/ROHS *Infrared detect technology used. *Helps to detect unwanted people. *Battery operated, Wall mountable.PackingCartonpcs/CartonG.W (kg)N.W (kg)MOQCTNS/20"FCCertificateBatterywireless doorbell (DC)0.045 CBM609.008.003000620CEPlug-in wireless doorbell (AC)0.061 CBM6012.0011.003000460CEMike ZhenHefei Long River Electrical Co.,Ltd.Tel:+86 13956994028www.anhuibell.com