Note: This item comes with AU plug, please confirm the voltage of your area before purchasing. DescriptionAre you looking for a professional, yet affordable wireless door bell kit? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further Our professional wireless door bell kit must meet your needs. It is one of the best choices for you.Features- Color: Black.- Size: About 8.20X8.20X5.50cm/3.22X3.22X2.16inch.- Material: ABS, electronics.- AU plug: 230V.- It is made of high-performance ABS and electronic materials, which is not easy to damage and can be durable for a long time.- Efficient, waterproof and durable for a long time, it will be your good choice for wireless doorbells.- This wireless door bell is great to replace old or broken doorbell with a new one.- 55 tunes and 5 levels of volume to choose from, very convenient.- Fine workmanship, easy transmission, stable performance, and very practical.SpecificationThe voltage of the plug-in receiver: 110-260V / 50-60HzPower consumption: 0.2W WTransmitter battery: 1 x 12V 23A alkaline battery built-inReceiver battery: 3 x batteries not includedRingtones: 55 music optionalWireless distance: 300M in the open airVolume: 5 levels, 25-100dBSilent mode: supportTransmitter waterproof rating: IP55Working frequency: 433.92MHz280KHzWorking temperature: -30~+70Packing list1 Set X Wireless Doorbell without Battery