Wireless Intercom Rechargeable Smart Intercom s for Home Real-Time Two-Way 1 Outdoor Unit with 2 Indoor Uni

Features: Long Range Communication: This wireless intercom doorbell boasts a tested communication range of up to 1000m/3280ft, making it perfect for large homes, hotels, villas, factories, and hospitals. It ensures clear and reliable communication from the 1st to the 8th floor, providing convenience and security for your property. The doorbell also comes with a user-friendly design, including intercom light and battery light indicators for easy operation. Easy Installation & Use: With no need for wiring or internet connection, this wireless telephone intercom doorbell is easy to install and use. It Features a slim design with a thickness of only 18mm, providing a comfortable hand feel. The doorbell also Features a high-gloss UV surface treatment for a premium feel and durability. Customizable Ringtones & Volume: Choose from 38 different ringtones to suit your personal preference. The doorbell also allows for 3-level volume adjustment for both ringtones and call volume, ensuring that you never miss a visitor. Long Battery Life: Both the outdoor and indoor units are powered by 1800mAh rechargeable batteries. The outdoor unit can work for about 8 months with normal use (5 presses per day, 2 minutes per call), while the indoor unit can work for about 3 days and can be continuously charged on its charging base. When there are two indoor units, press the ringtone button and the other indoor unit rings the ringtone. Press the TALK button to directly talk to each other. When using the walkie talkie. Sturdy & Weatherproof: The outdoor unit of the intercom doorbell is rated IP54 for water resistance and comes with a rain cover, allowing it to be safely installed outdoors. The indoor unit, however, is not waterproof and should be kept indoors. Specifications: Power Supply Method: Rechargeable lithium battery Working Temperature: -20 degrees C to 55 degrees C Transmission Distance: About 1000m/3280ft of open space, 20-100m/66-328ft of partition walls, floors 1-8 Working Frequency: B-gear frequency 462MHz, A-gear frequency 434MHz Working Hours: Charging the outdoor unit once takes about 8 months, while charging the indoor unit once takes about 3 days Charging Time: Approximately 5 hours when fully charged Music Ringtones: 38 ringtones Ring Volume: Level 3 adjustment (standby machine volume adjustment key) Call Sound: Level 3 adjust call size (adjust volume key during call operation) Outdoor Unit Waterproof Grade: IP54 Indoor Unit Waterproof Grade: None Battery Capacity: 3.7V/1800mAh Product Colors: White, Black (optional) Product Quantity: 1 Outdoor Unit with 1 Indoor Unit, 1 Outdoor Unit with 2 Indoor Units (optional) Outdoor and Indoor Unit Hosts Size: 116 * 56 * 18mm/4.6 * 2.2 * 0.8inch Waterproof Cover Size: 121.5 * 61.5 * 31.3mm/4.8 * 2.4 * 1.3inch Charging Dock Size: 70 * 56 * 29mm/2.8 * 2.2 * 1.1inch Attention: 1. The outdoor unit calls the indoor unit, and after the indoor unit presses PTT to hang up, the outdoor unit delays for 30 seconds to