Suitable for wireless home intercom systems, ultra-long-range voice callers, two-way emergency call system for the elderly [Long-Range Communication]: Our wireless two-way intercom system is designed for long-distance communication with a tested range of up to 300 meters. It can even penetrate walls and floors, allowing for clear communication from the 1st to the 8th floor. This makes it an ideal solution for elderly care, home communication, or office use. [Slim and Slim Design]: At only 18 mm thick, our intercom system is slimmer than similar products on the market, which are typically over 22 mm thick. The slim design, combined with a high-gloss UV treatment and a plastic + silicone button structure, provides a superior tactile experience. [Smart and User-Friendly]: Our intercom system is equipped with user-friendly features, including a talk light and a battery indicator for easy monitoring. It also comes with a smart charging cradle, ensuring the device is always powered up and ready to use. [High-capacity battery]: Powered by an 1800mAh polymer lithium battery, our intercom system can last approximately one week with normal use (5 calls per day, per call). It also boasts a standby time of 3-5 days, making it a reliable communication tool for your home or office. [Versatile and adjustable]: Our intercom system offers two frequency options (462MHz and 434MHz) to avoid interference. It also features 38 ringtone options and 3 adjustable volume levels for both ringtones and call volume. Please note that the two devices must be used together and cannot be used separately. Power supply method: 1800mAh polymer lithium battery; Battery operated: DC5V/1A; Operating temperature: -20°C to 55°C; Mission distance: Approx. 1000 meters open area, 20-100 meters through walls, 1-8 floors; Operating frequency: B-gear frequency 462 MHz, A-gear frequency 434 MHz; Operating time: Approx. 1 week on a single charge; Charging time: Approx. 5 hours when fully charged; Standby time: 3-5 days; Sound setting: 3 adjustable levels; Music ringtones: 38 ringtones; Ring volume: Set to level 3 (standby button to adjust machine volume); Ring tone: Level 3; Adjust call volume (adjust volume button during a call) Color: White Silver Material: Plastic Package Contents: 2x Home Intercom Pagers Only the above package contents, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the reality. The allowable measurement error is +/- 1-3 cm.