Feature: 1. Efficient Wireless Calling: Electric smart wireless doorbell is suitable for both home and commercial use, providing long range calling capabilities for added convenience and comfort. 2. Easy Installation Without Drilling: Featuring a plug and play design, call bell requires no drilling, which is ensuring a quick setup process for seamless use, providing great convenient for you. 3. Clear And Loud Ringing: The bell produces clear and loud sounds, making it suitable for various environments and perfect for pregnant women, elderly individuals, disabled persons, and children to use with ease. 4. User Friendly Operation System: With a convenient and easy to use operating system, electronic doorbell is simple to operate and user friendly, catering to users of all ages and abilities. 5. Responsive Transmission System: The doorbell is designed with a sensitive transmission system that ensures stable signal transmission with no delay, guaranteeing reliable and instant communicate. Specification: Item Type: Pregnancy Call Bell Material: Plastic Receiver: Approx. 9 x 5.5cm / 3.5 x 2.2in Pager: Approx. 7.6 x 4cm / 3 x 1.6in Voltage: 100-240V Pager Battery Type: 1pc 23A12V dry battery (built in) Battery Capacity: 60mAh. Package List: 1 x Pregnancy Call Bell 1 x Receiver 1 x User Manual 1 x Accessories 2 x Screws 1 x Sticker