N65-2T2 Colorful Light Flashing Home Doorbell 55 Ringtones Wireless Door Bell,2 Transmitter+2 Receiver - EU Plug/White •Easy to Install and Set Up: Modern design and easy to operate. Very easy to install,just plug the mini receiver into an outlet and then secure the transmitter to the wall. Won't interfere with other devices in your home or neighborhood,ensuring you never miss a visitor. This wireless doorbell kit is the most convenient choice for your home and business •1300ft Long Range: This high frequency electronic technology wireless remote control doorbell uses a wireless signal solution with strong anti-interference capability. In the open environment,the sensing distance can reach 1300 feet. Widely used in homes,apartments,schools,villas,offices,warehouses,hotels,factories,hospitals,etc. •55 Smart Ringtone: Perfect wireless doorbell kit with 55 different ring tones and 5 levels of adjustable volume from 0db to 110db. Easy to select and set your favorite tone; flashing light indicator is easy to notice including the hearing impaired. Retains memory of your last set melody and volume after power failure; No need to reset to previous settings; Convenient and easy-to-use design gives you a better using experience •Waterproof and Durable: Sleek modern design with IP55 dust and water protection,durable to use Specifications: •Material: ABS •Transmitter waterproof rating: IP55 •Working distance: 300 meters (open and unobstructed) •Receiver voltage: 110-260V/50-60Hz •Transmitter battery: 1 x 12V 23A alkaline zinc-manganese battery (included) •Ringtones: 55 polyphonic music •Operating frequency: 433.92MHz ± 280KHz •Operating temperature: -30 to +70℃ •Receiver size: 82*82*25mm •Transmitter size: 70*35*15mm Package included: •2 x Transmitter (with Battery) •2 x Receiver •2 x English User Manual