CRONY RL-0518 433MHz Wireless Audio Intercom System - 500m Long Range Battery Powered Doorphone with Digital Audio, IP44 Waterproof & Rechargeable Lithium Batteries for Easy Installation

The CRONY RL-0518 is a professional 433MHz wireless intercom system designed for clear audio communication over impressive distances. Operating up to 500m in open areas, this battery-powered system eliminates complex wiring while delivering robust performance for various properties. Key Features: • Extended Wireless Range: Advanced 433MHz technology ensures stable connection and clear audio transmission up to 500 meters in open spaces • Dual Battery Operation: Both indoor and outdoor units feature rechargeable 18650 lithium batteries with convenient USB charging capability • Weather-Resistant Design: Outdoor unit rated IP44 waterproof for reliable performance in various weather conditions • Customizable Alerts: Choose from 8 distinctive ringtones with 4 adjustable volume levels to suit your environment • Smart Power Management: Clear indicator lights display battery status and charging progress for both units Ideal for homes, offices, and commercial spaces, this easy-to-install system provides seamless wireless communication with the added convenience of wireless unlock functionality. • Provides exceptional 500-meter working range in open areas using reliable 433MHz technology. • Features rechargeable 18650 lithium batteries in both indoor and outdoor units for cordless operation. • Offers IP44 waterproof rating on outdoor unit to withstand various weather conditions. • Includes 8 selectable ringtones with 4 adjustable volume levels for personalized alerts. • Enables convenient USB charging and wireless unlock functionality for enhanced accessibility.