Battery-free and waterproof pushbutton made possible by innovative technology that converts kinetic energy to electric power, easy to mount with either a double-sided adhesive tape or drywall mounting hardware, suitable for both indoors and outdoors (adhesive tape & mounting hardware are included)
Strong RF signals transmits through doors, walls, and other obstacles without causing interference with other electronics devices, long range transmission of up to 360 feet, line of sight
Easy system expansion, sync up to a total of 10 pushbuttons/transmitters with 1 single doorbell/receiver, and pair unlimited number of doorbells with 1 pushbutton (additional pushbuttons and doorbells sold separately)
38 selectable ring tones with mute option and 3-level volume adjustment, plus bright blue flashing LED indication, a convenient feature for noisy environments or people with challenged hearing
Suitable locations include but not limited to apartments, RVs, mobile homes, detached garages, workshops, retail shops, office buildings, front offices, and etc.