Physen Radio Doorbell Set

The bell receiver has 58 melodies and 5 adjustable volumes from 0 to 110 dB. The ring tone is loud enough to hear the radio bell clearly on other floors. You can set different ringtones on each receiver for each transmitter. The LED ringer is also particularly suitable for older people and the hearing impaired. The doorbell radio remembers your last selected melody and the set volume even after a power failure; you do not have to reset your previous settings. Up to 300m/1000 feet outdoor range ensures you won't miss your visitor whether you're upstairs, in the garden or at the back door. And it won't interfere with other devices in your home. The signal can penetrate obstacles very well. With IP55 waterproof and dustproof rating, the transmitter can work well in wet and dry conditions. Just plug the doorbell receiver into a power outlet and attach the doorbell button to the house wall with the included screws or adhesive pad, No technical knowledge required.All doorbells have passed CE, RoHS and FCC certification.So the wireless doorbell set is not only extremely convenient to use, but also very user-friendly.