• Real-Time Two-Way Communication: Experience phone-like communication with this wireless intercom doorbell, enabling hands-free conversations once connected • Long-Range Connectivity: Enjoy clear communication up to 400 meters in open areas, 300 meters indoors, and through 3 walls, ensuring reliable coverage throughout your home • Compact and Stylish Design: The doorbell features a compact design with a matte ABS finish for a smooth, durable feel • User-Friendly Interface: Includes a smiley face button and indicator lights for easy, intuitive operation • Versatile o Options: Choose from 4 ringtones with 8 adjustable volume levels to suit your preferences Specifications: • Outdoor Unit Power: 1.5V AAA batteries (not included) • Indoor Unit Power: DC 5V/1A • Operating Temperature: -20 to 60℃ • Ringtones: 4 melodies with 8 volume levels • Outdoor Unit Dimensions: 8 x 5.2 x 2.3cm • Indoor Unit Dimensions: 8 x 5.2 x 1.3cm Package Included: • 1 x Outdoor Doorbell • 1 x Indoor Unit • 1 x Screw Pack • 1 x Adhesive Tape • 1 x English User Manual