Enhance your communication with this Wireless Intercom Doorbell, designed for convenient remote operation up to 1500 meters without the need for network connection or complex wiring. Crafted from durable ABS material, this intercom system offers reliable performance with a variety of practical features suitable for homes, offices, laboratories, and medical environments. Key Features: · Long-Distance Wireless Communication: Supports effective remote intercom use up to approximately 1500 meters in open areas, providing clear communication without reliance on network or wiring. · Robust Battery Life: Equipped with intelligent power-saving technology and high-capacity rechargeable lithium batteries (3.7V 1800mAh built-in), the doorbell can operate for over six months on a single full charge under normal usage. · Waterproof Internal Design: Durable, water-resistant construction ensures reliable function in various environments, enhancing the intercom’s longevity and usability. · Dual Charging Methods: Flexible charging options to conveniently recharge both internal and external batteries, ensuring continuous, uninterrupted use. · Clear Indicator Lights: Features intercom and power indicator lights along with tactile buttons, allowing users to easily monitor device status and operation at a glance. · Multi-Mode Operation: Includes two indoor units that allow seamless switching between ringing call mode and intercom mode, adapting to different communication needs efficiently. · Wide Application Range: Ideal for various settings including residential, commercial, laboratory, and healthcare facilities where reliable wireless communication is essential. Specifications: · Item Type: Wireless Intercom Doorbell · Material: ABS · Battery: Inner Rechargeable Lithium Battery 3.7V 1800mAh (built-in), External Rechargeable Lithium Battery 3.7V 1800mAh (built-in) · Working Temperature: -20℃ to 55℃ · Transmission Distance: Up to 1000m in open space, 20-50m through walls · Operating Frequency: 410MHz-490MHz Package Includes: · Wireless Intercom Doorbell System (including two indoor units) This Wireless Intercom Doorbell delivers long-range, battery-efficient communication with waterproof durability and versatile operation modes, making it an excellent solution for enhancing daily communication in diverse environments.