Features: Long-Range Communication: Our wireless two-way intercom system is designed for long-range communication, with a tested range of up to 300 meters. It can penetrate walls and floors, enabling clear communication from the 1st to the 8th floor. This makes it suitable for elderly care, home, or office use. Slim and Sleek Design: With a thickness of only 18mm, our intercom system is slimmer than many similar products on the market, which are typically over 22mm thick. The slim profile, combined with a high-gloss UV-treated surface and a plastic + silicone button structure, provides a comfortable tactile experience. Intelligent and User-Friendly: The intercom system includes user-friendly features such as a talk light and battery indicator for easy monitoring. It comes with a charging dock for convenient smart charging, ensuring the device remains powered and ready for use. High-Capacity Battery: Equipped with a 1800mAh polymer lithium battery, the intercom system can last approximately one week under normal usage (5 calls per day, 30 seconds per call). It offers a standby time of 3 to 5 days, making it a reliable communication solution for home or office environments. Versatile and Adjustable: The system supports two frequency options (462MHz and 434MHz) to help reduce interference. It offers 38 ringtone choices and three adjustable volume levels for both ringtones and call o. Please note that the two units must be used together as a pair and cannot function independently. Specifications: Power Supply Method: Polymer lithium battery 1800mAh Battery Input: DC5V/1A Working Temperature: -20°C to 55°C Transmission Distance: Up to 1000 meters in open space, 20-100 meters through walls, floors 1-8 Working Frequency: B-gear 462MHz, A-gear 434MHz Working Time: Up to 1 week on a single charge (under normal use) Charging Time: Approximately 5 hours when fully discharged Standby Time: 3-5 days Sound Adjustment: 3-level adjustable Ringtones: 38 options Ring Volume: 3-level adjustment (using standby machine volume key) Call Volume: 3-level adjustment (using volume key during call) Color: Black, White (available options) Product Size: 11.6 x 5.6 x 1.8cm / 4.6 x 2.2 x 0.7inch Charging Dock Size: 7 x 5.6 x 2.9cm / 2.8 x 2.2 x 1.1inch Note: Two units must be used together as a pair and cannot operate separately. Due to variations in display screens and lighting effects, the actual color of the item may differ slightly from the images shown. Packing List: 2 x Indoor Intercom 2 x Charging Dock 1 x 2.0 Small Screwdriver 1 x Charging Station Charging Cable 1 x Host Charging Cable 1 x User Manual 1 x Strong Adhesive Pad