[Long-Range Communication]: Our wireless two-way intercom system has a tested range of up to 300 meters. It can penetrate walls and floors, enabling clear communication between floors. Suitable for home, office, and care applications. [Slim and Sleek Design]: With a thickness of only 18mm, this intercom is slimmer than many comparable models. The high-gloss UV-treated finish and plastic + silicone button structure provide a comfortable tactile experience. [Intelligent and User-Friendly]: Features include a talk light and battery indicator for easy monitoring. Includes a charging dock for convenient charging. [High-Capacity Battery]: Powered by an 1800mAh polymer lithium battery. Provides approximately one week of operation with typical use (5 calls per day). Standby time is 3–5 days. [Versatile and Adjustable]: Offers two operating frequencies (462MHz and 434MHz) to help reduce interference. Includes 38 ringtones and 3 adjustable volume levels for both ringtones and call audio. Both units must be used together as a pair. Power Supply: 1800mAh polymer lithium battery Charging Input: DC 5V / 1A Operating Temperature: -20°C to 55°C Transmission Distance: Up to 1000 meters in open space; 20–100 meters through walls or floors (floors 1–8) Operating Frequencies: 462MHz and 434MHz Battery Life: Up to 1 week per charge Charging Time: Approximately 5 hours Standby Time: 3–5 days Volume Control: 3-level adjustment for ringtone and call volume Color: White/Silver Material: Plastic Package Contents: 2 x Home intercom units Note: Color may vary slightly due to screen settings and lighting. Measurements may vary by ±1–3 cm.