Solar Powered Waterproof Wireless DoorBell Plug Smart Door Bell Chime 1 Button 1 Receiver|Doorbells(black)Features:*1. Intelligent light sensing: With the night light, the daylight will not light, the sky will be bright, and the sky will be extinguished.2. Strong penetrating power: The signal transmitted at a long distance is stable, so there is no need to worry about not receivingthe signal.3. 52 music options: the first beautiful and beautiful; the sound quality is crisp, there is always one you like.4. The volume of 4 files is adjustable: no longer because the sound is too loud and no longer because the sound is too small tohear.5. Energy saving: The transmitter solar charging host uses household electricity, less than one year in a year.Descriptions:1. Solar charging: save money, save trouble, and be green.2. No radiation: the Ministry of Children and the Elderly can be used safely.3. Freely pairable: one transmitter can be matched to several receivers, and one receiver can also be matched toseveral transmitters.Specifications:Receiver operating voltage: 90-260VReceiver standby current: 10mAReceiver operating current: 60 mAReceiver operating frequency: 433MHzReceiver power: 2wThe receiver can adjust the volume: 20-80db (4th cycle adjustment)Transmitter solar cell: 150Mah polymer lithium batteryTransmitter solar panel maximum power: 5.5V 25mA 0.13WTransmitter operating current: 12mATransmitter working range: about 200-300m (open area)Transmitter waterproof rating: IP65Music: 52Color: blackTransmitter size: 90*35*15mmReceiver size: 85*85*26mmAdd transmitter or receiverFirstly plug into the socket, press volume button for 6 seconds, blue led light keep on, then press transmitter button, when receiver blue led flash, means pair successfully.It will fail paring if you can not finished within 6 secondsAttention: One transmitter can be matched with several receivers. One receiver can be matched with several transmitters as well., and with memory function once off power.