Honeywell Series 3 Wireless Portable Doorbell with halo light and push button. It is simple, reliable and hassle-free, the doorbell comes with sleep mode, which mutes the doorbell for 3, 6, 9 or 12 hours so you can relax free from disturbance. The innovative halo light and LED strobe provide discreet but effective visual alerts which complement your chosen melody in loud environments or help to alert you when the doorbell can not be heard. The doorbell benefits from digitally enhanced, crystal clear sound that carries well throughout the home and garden, packing market-leading sound quality into some deceptively small packages. It comes pre-linked and ready to install straight out of the box, with optional screw-free installation and an easy open battery compartment so you can be set up in minutes. All this is backed up by our 2 years product guarantee. The pack contains 1x wireless portable doorbell, 1x wireless push button, 1x CR2032 (3V) battery, 1x quick start guide, 1x safety and guarantee, 1x declaration of conformity.