Self-Powered - This is a wireless doorbell, but no more battery or battery consumption! Just press the button and it converts kinetic energy into an electrical signal to ring your wireless doorbell. So never worry about the button's battery running out of power, and no need to worry about buying weird batteries to power the button. You will always hear the sound of your doorbell! Weather Display Screen IP64 Waterproof - The IP64 waterproof rating makes the transmitter rain and weather proof, made of ABS+PC plastic, durable, and has an operating temperature of -20°C to +65°C. LED time display, which shows the time when the receiver is not ringing, can be used as a clock 38 Melodies and 4 Volume Levels - Choose your favorite sound from 38 different ringtones, and select the desired volume from 4 levels. (0-110 dB). The memory function of our wireless outdoor doorbell can remember the last melody, volume level and time after power failure 150m Wireless Operation150m signal transmission distance can reach 492ft/150m;meter is in the open position. Even with many obstacles (doors, walls, between floors), space and distance are long. The sound is loud enough to hear the doorbell clearly in every corner of the house Simple Operation- The transmitter can be fixed on the wall of the front door with tape, and the receiver can be plugged into an indoor power outlet; You will receive: 1 transmitter, 2 receivers, 1 double-sided tape, 1 user manual Product Description Color: 2 pieces Tired of changing batteries in your doorbell's wireless network? Tired of your doorbell not having enough range? Your doorbell button is off and all electronic devices are off? In all these cases, the wireless doorbell with LED time display is tailor-made for you. You can start with a kit that includes 1 transmitter and 2 receivers. All you have to do is mount the doorbell on your front door and plug the doorbell into a household electrical outlet. The wireless doorbell runs on its own power. You can choose from 38 different chimes and control their volume. Main Features: - Easy to install doorbell with 2 plug-in bells - 150 ringtones m long distance remote control, stable signal - 38 cool tunes to choose from, 4 levels of volume adjustable - Self-generated electrical design, simple and convenient to use - Advanced digital mirror time display, high-end atmosphere - Multiple uses for home, office, hotel, restaurant Package: 1 * Transmitter (self-generated) 2 * Receiver 1 * Double-sided tape 1 * User Manual