Experience seamless communication and enhanced home security with this advanced Wireless Ring Chime, designed for reliable, long-distance transmission without the need for internet or WiFi. Utilizing RF433 infrared technology, it offers an impressive 300m (984ft) ultra-far transmission range, ensuring you never miss a visitor at your door. Key Features: · Wireless & Long-Range Transmission: Equipped with RF433 infrared technology, this doorbell chime operates without internet or WiFi, providing a stable connection up to 300 meters (984 feet) away, perfect for large homes or outdoor use. · Real-Time Intercom Functionality: Enables instant calling and answering with anti-interference encrypted calls, delivering crystal-clear sound quality. The indoor unit features 4 adjustable volume levels to suit your preference. · Weather-Resistant Outdoor Chime: The outdoor unit is rated IP44 waterproof, making it durable and reliable in various weather conditions. Installation is quick and easy with no wiring or drilling required. · One-Touch Operation: Simplified one-touch calling and answering make it user-friendly for children and the elderly, enhancing safety and convenience for the entire family. · Multi-Unit Connectivity: One outdoor chime can connect to multiple indoor units (this package includes 1 indoor chime). When the doorbell is pressed, all connected indoor units ring simultaneously. Indoor units also support intercommunication, allowing family members to talk to each other in different rooms in real time. · Convenient Type-C Charging & Long Battery Life: Both indoor and outdoor units feature built-in 800mAh rechargeable lithium batteries. The indoor unit, supported by a charging base, can operate for 3-7 days per charge, while the outdoor chime offers up to 6 months of use after a full charge. Specifications: · Color: Black / White (optional) · Main Material: ABS · Charging Port: Type-C · Battery Capacity: 800mAh (each unit) · Power Consumption: 0.5W · Outdoor Chime Size: 5.1 x 2.4 x 10 cm (2.01 x 0.94 x 3.93 in) · Indoor Unit Size: 5.6 x 2.4 x 11.9 cm (2.20 x 0.94 x 4.68 in) · Weight: Approximately 300g (10.58 oz) Package Includes: · 1 x Outdoor Ring Chime · 1 x Indoor Chime Unit This wireless ring chime system combines long-distance connectivity, clear real-time intercom, and weatherproof durability with easy installation and user-friendly operation. Ideal for enhancing home security and communication, it offers flexible multi-unit connectivity and long-lasting battery performance for uninterrupted convenience.