PAVEOS Wireless Doorbell, Home Intelligent Reception, Home Sensor, Remote Control Caller Features: It can be wirelessly connected, with five volumes and 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 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 Househeld supplies for adult and children Design: Our smart household appliances adopts a close-to-life design, just to achieve a satisfying experience for you. Durability: This smart household appliances is made of sturdy and durable materials, which can maintain its functionality even after frequent use. Multipurpose: This smart household appliances can provide convenience for your daily life, whether it is for daily work or home leisure, you can also give it to your husband/wife/family, they will love it!