[Long-Range Communication]: Our wireless two-way intercom system has a tested range of up to 300 meters. It supports communication through walls and floors, enabling reliable use between floors in residential or office buildings. Suitable for home, office, and caregiving applications. [Slim and Sleek Design]: With a thickness of only 18 mm, this intercom is slimmer than many comparable models. The high-gloss UV-treated surface and plastic + silicone button design provide a comfortable, premium feel. [Intelligent and User-Friendly]: Features include a talk indicator light and battery status indicator for easy monitoring. Includes a charging dock for convenient, consistent power management. [High-Capacity Battery]: Equipped with an 1800 mAh 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 (462 MHz and 434 MHz) to help reduce interference. Includes 38 ringtones and three adjustable volume levels for both ringtone and call audio. Note: Both units must be used together as a pair. Power Supply: 1800 mAh polymer lithium battery Input: DC 5 V / 1 A 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) Frequencies: 462 MHz (B-band), 434 MHz (A-band) Battery Life: Approx. 1 week per charge (typical use) Charging Time: Approx. 5 hours Standby Time: 3–5 days Volume Control: 3-level adjustment for ringtone and call volume Ringtones: 38 options Color: White/Silver Material: Plastic Package Contents: 2 × Home intercom units Note: Actual product color may vary slightly due to screen settings and lighting conditions. Dimensions may vary by ±1–3 cm.