This product is a modern and stylish wireless doorbell with 58 melodies 5 volume levels and light ring. It can be expanded with multiple receivers and be set the independent ring tones for each transmitter and remembers your last-set melody and volume level after a power outageIt’s also a Wi-Fi wireless security panel supporting connection up to 100 wireless sensors and 10 remote tags via the eV1527 wireless protocol. In The Box: Alarm Panel/Hub(Receiver) x1, Transmitter(Doorbell Button) x1, Quick Start Guide x1, Door/Window Sensor x1(optional), PIR Motion Detector x1 (optional), Remote Tag x1(optional)
