Aweek Portable Wireless DoorBell Kit Operating at over 80-150m Range with 36 Chimes and 3 Adjustable Volume,1 Push Button Transmitter and 2 Receivers with LED Indicator Fashion design make your door elegant, sleek dasign easily blends with the decor of your home. high end visual effects. ABS material attributes of high rigidity which is also anti-burn and impact resistance. Unique and elegant style,36 varied style of tunes for optional and 3 levels adjustable volume. Built-in stereo speakers make the sound crisper and sweeter. Wireless remote control distance up to Range in open spaces: Max.80-150m. that you will not miss any guests. Includes 1 waterproof push button transmitter,and 2 plugin receiver units with LED indicator,and battery for remote transmitter.(Note:We have printed our logo " Aweek" on the product. If you receive the item without our logo, please complain to Amazon directly.) low-power consumption design, power saved and durable;suitable for use in Hospitals, hotels, offices, villas, apartments etc.