Features: Long-Range Communication: This wireless two-way intercom system offers a tested range of up to 300 meters. It maintains clear communication through walls and floors, supporting use across multiple levels (e.g., 1st to 8th floor). Suitable for home, office, or caregiving applications. Slim and Sleek Design: At just 18mm thick, it is slimmer than many comparable models. Features a high-gloss UV-treated surface and a plastic + silicone button structure for comfortable handling. Intelligent and User-Friendly: Includes visual indicators for talk status and battery level. Comes with a dedicated charging dock for convenient, reliable charging. High-Capacity Battery: Equipped with an 1800mAh polymer lithium battery. Provides approximately one week of typical use (5 calls per day, 30 seconds each) and 3–5 days of standby time. Versatile and Adjustable: Supports two operating frequencies (462MHz and 434MHz) to help reduce interference. Offers 38 ringtones and three adjustable volume levels for both ringtones and call audio. Note: Two units must be used together as a pair; individual operation is not supported. Specifications: Power Supply: 1800mAh polymer lithium battery Charging Input: DC 5V / 1A Operating Temperature: –20°C to 55°C Transmission Range: Up to 1000 meters in open space; 20–100 meters through walls/floors (1st to 8th floor) Operating Frequencies: 462MHz (B-band), 434MHz (A-band) Battery Life: Approximately 1 week per charge Charging Time: ~5 hours for full charge Standby Time: 3–5 days Volume Control: 3-level adjustment for ringtone and call volume Ringtones: 38 options Color Options: Black, White Product Dimensions: 11.6 × 5.6 × 1.8 cm (4.6 × 2.2 × 0.7 in) Charging Dock Dimensions: 7 × 5.6 × 2.9 cm (2.8 × 2.2 × 1.1 in) Note: Two units are required for operation — sold and used as a set. Disclaimer: Actual product color may vary slightly due to differences in screen displays and lighting conditions. Package Includes: 2 × Indoor Intercom Units 2 × Charging Docks 1 × 2.0 mm Screwdriver 1 × Charging Station Cable 1 × Host Charging Cable 1 × User Manual 1 × Strong Adhesive Pad