Wireless Doorbell, Home Intelligent Reception, Home Sensor, Remote Control Caller Features: It can be wirelessly connected, with five adjustable volumes and adjustable sounds as needed. LED flashing reminder with strong penetration. The transmitter uses batteries, and the receiver has been put into use. This is the doorbell and also a pager: elderly people, children, and pregnant women all have needs, so you can ring the doorbell to notify them when there is a situation at night. One click call, no additional required. Strong penetration: Strong penetration, received at a distance of 150 meters from the ground. It can mute with one click to avoid interference. The USB connector can rotate up and down, suitable for multiple angles. There are 60 options for music ringtones: the door ringtone is not a "ding dong" sound, and can also achieve free switching of 60 chords, with a melodious sound quality. Press the doorbell button and the receiver will sound and flash. Multiple combinations allow the host to work together with multiple calling machines without noise, effectively avoiding the trouble caused by interference between neighbors. Product Description: Material: ABS Receiver: 5.6 * 5.6 * 1.6cm Emitter:6.5 * 3.7 * 1.1cm Receiving distance: 150 meters Volume adjustment: 5th gear Internal ringtones: 60 types Transmitter battery: 2032 battery Receiver: plug in the power supply for use (AC110V/220V) Product contain:1x button, 1x bell, 1x manual Staron 2024 Wireless Doorbell, Home Intelligent Reception, Home Sensor, Remote Control Caller Please be free to contact us if you have any questions, we promise that we will give you all satisfied solution. By the way, please check with our item description very carefully, for saving you time and get exactly what you want, thank you and enjoy your shopping. Easy Plug & Play Setup: Experience seamless installation with the doorbell. Simply plug it in and you're ready to go, making it an ideal choice for quick and convenient setup. Long-Range Signal Reception, making the Staron doorbell ideal for large homes or properties. No matter where you are in the house, you'll never miss a visitor. Durable and Reliable Design: The Staron 2110 doorbell is built to last, providing reliable performance time and again. Its robust construction ensures it will withstand the test of time, making it a worthy investment for your home.