Experience seamless communication with our Wireless Intercom Doorbell, designed to provide reliable two-way voice interaction between indoor and outdoor units. Crafted from durable ABS material and powered by a built-in 1800mAh polymer lithium battery, this doorbell system offers long standby time and efficient automatic charging for continuous use. Key Features: · Two-Way Voice Communication: Enables clear and convenient intercom conversations with visitors at your door, allowing you to identify guests by voice before granting access. · Simple One-Button Operation: Easily initiate calls with a single button press; hold to talk and release to listen, ensuring user-friendly communication for all ages. · Adjustable Loud Volume & Clear Sound: Features a loudspeaker with three volume levels and clear audio quality, ensuring you never miss a visitor. · Extended Wireless Transmission Distance: Supports open-area communication up to 1000 meters and effective range through partition walls and floors between 20 to 100 meters, suitable for multi-story buildings. · Long Battery Life & Quick Charging: Equipped with a 1800mAh polymer lithium battery that lasts about one week with typical use (five 30-second calls per day) and recharges fully in approximately five hours via the intelligent automatic charging stand. · Multiple Ringtones & Volume Control: Offers 38 ringtone options and adjustable call volume to customize alerts according to your preference. · Wide Operating Temperature Range: Reliable performance in temperatures from -20°C to 55°C, making it suitable for various environments. Specifications: · Material: ABS · Battery Type: Polymer Lithium Battery (Built-in) · Battery Capacity: 1800mAh (Model 103450) · Power Supply: DC 5V/1A · Operating Frequency: B Gear 462MHz / A Gear 434MHz · Transmission Distance: Up to 1000 meters open area; 20-100 meters through partition walls; supports floors 1 to 8 · Working Time: Approximately 1 week per full charge (typical use) · Charge Time: About 5 hours for full charge · Ring Volume: 3 adjustable levels · Music Ringtone: 38 selectable tones · Operating Temperature: -20°C to 55°C Package Includes: · 1 x Wireless Intercom Doorbell This Wireless Intercom Doorbell combines ease of use, long-range communication, and reliable battery performance, making it an ideal solution for enhancing home security and convenience. Its compact design and intelligent charging system ensure the doorbell is always ready to connect you with your visitors.