Product Description: Elevate your home security system with our state-of-the-art Wireless Doorbell Alarm, a perfect blend of style, functionality, and reliability. Designed to meet global standards, this doorbell ensures seamless integration into any home environment while providing exceptional performance. Universal Frequency Compliance: This doorbell operates on a frequency that adheres to national regulations worldwide, ensuring it does not cause harmful electromagnetic interference. Enjoy peace of mind with a device that is universally compatible and safe to use. Convenient Power Supply: The outdoor bell is powered by 4 AAA batteries (not included), making it easy to replace and maintain. The indoor bell connects via an external USB data cable, offering a flexible power solution that suits your home setup. Energy Efficient Design: With low power consumption, the outdoor bell boasts an impressive standby time of up to 4 months. This efficiency ensures long-lasting performance without frequent battery changes. Superior Sound Quality: Featuring a large, adjustable speaker, the doorbell delivers clear and crisp audio, doubling as a mobile interphone. Communicate effortlessly with visitors at your door with excellent sound clarity. Extended Range Capability: Designed for optimal performance, the doorbell has a maximum open distance of 200m (656.2ft), ensuring reliable operation throughout your property. Effortless Installation: Simply stick the unit directly to the wall using adhesive tape for a hassle-free setup. No complex wiring is required, making it ideal for quick and easy installation. Flexible Pairing Options: The outdoor bell pairs seamlessly with the indoor bell by learning its code. You can pair one outdoor bell with up to two indoor bells without interference, offering versatile and expandable security solutions. High-Quality Construction: Crafted from premium ABS plastic, this doorbell is not only durable but also exquisite and compact. Its sleek design adds a touch of elegance to any home, complementing your interior décor. Upgrade your home security with our Wireless Doorbell Alarm, combining advanced features with user-friendly design to provide a superior and reliable security solution.