Enhance your home or business security with this advanced Wireless Intercom Doorbell, designed to deliver clear and reliable communication across long distances. With a tested transmission range of up to 1000 meters (3280 feet) in open space, this intercom system is ideal for large homes, hotels, villas, factories, and hospitals, ensuring seamless communication from the 1st to the 8th floor. Its user-friendly design features intercom and battery light indicators for easy operation, providing convenience and peace of mind. Key Features: · Long-Range Communication: Achieves up to 1000m (3280ft) wireless transmission in open areas and 20-50m (66-164ft) through partition walls, making it perfect for multi-story buildings and expansive properties. · Easy Installation & Use: Completely wireless with no need for wiring or internet connection, featuring a slim and ergonomic design at only 18mm thickness. The high gloss UV surface adds durability and a premium look. · Customizable Ringtones & Volume: Choose from 38 different ringtones to match your preference. Both ringtone and call volumes offer 3 adjustable levels to ensure you never miss a visitor. · Long Battery Life: Equipped with 3.7V/1800mAh rechargeable batteries, the outdoor unit can operate up to 8 months on a single charge (based on 5 presses per day, 2 minutes per call), while the indoor unit lasts approximately 3 days and can be continuously charged via its docking station. · Two-Way Communication: When using two indoor units, pressing the ringtone button rings the other unit, and the TALK button allows direct intercom communication between indoor units. · Weather Resistant Outdoor Unit: The outdoor doorbell is rated IP54 for water resistance and includes a rain cover, ensuring reliable operation in various weather conditions. The indoor unit is designed for indoor use only. · Compact & Portable Design: Outdoor unit dimensions are 116 x 56 x 18mm, with a protective cover measuring 121.5 x 61.5 x 31.3mm, and the indoor charging dock sized at 70 x 56 x 29mm, making the system unobtrusive and easy to place. Specifications: · Power Supply Method: Rechargeable battery (3.7V/1800mAh) · Working Temperature: -20°C to 55°C · Transmission Distance: Up to 1000m/3280ft open space; 20-50m/66-164ft through walls · Working Frequency: B-gear 462MHz, A-gear 434MHz · Charging Time: Approximately 5 hours for full charge · Music Ringtones: 38 options · Volume Adjustment: 3 levels for ringtone and call sound · Outdoor Unit Water Resistant Grade: IP54 · Indoor Unit Water Resistant Grade: None · Product Color: Black · Package Includes: 1 Outdoor Unit, 2 Indoor Units This Wireless Intercom Doorbell system combines long-range communication, ease of installation, customizable settings, and robust weather resistance, making it an excellent choice for enhancing security and communication in various residential and commercial environments.