... CE, FCC, RoHS Product parameters : Remote control output<10mwRemote control voltage≤12VReceiver volume range25-85dbReceiver standby current<1 ... pictures: Package includes:Wireless doorbell main unitWireless remote control (transmitter unit) with double sided adhesive tapeOne ... graphic design, mold manufacturing, plastic molding, quality control, etc…6. Using western simplicity type for product design, ...