... design 2, long distance(300m) 3, waterproof (ip44) 4, Anti-interference(1/6560) 5, CE, FCC, RoHS Product parameters : Remote control output<10mwRemote control ... , FCC, RoHS,ISO9001 Product pictures: Package includes:Wireless doorbell main unitWireless remote control (transmitter unit) with double sided adhesive tapeOne 23A 12V batteries All ...