1. 8 buttons remote controller CE Certified approved 2. Modulation: OOK 3. CE Certification 4 ... . Brand New and 100% tested. 8 buttons remote controller CE Certified approved Battery modelCR2032Operation voltageDC 3.0VStandby currentless 2uAOperation ... receiver control switch, wireless detectors(PIR Motion sensor, door soor, gas detector, smoking deteckor, water leaking detector, etc.) and home / ...