Feature:1. [Long Range Communicate]: Our wireless two way intercom system is designed for long range communicate, with a tested range of up to 300 meters. It can even penetrate walls and floors, allowing for clear communicate from the 1st to the 8th floor. This makes it an ideal solution for elderly care, home or office communicate.2. [Slim and Stylish Design]: With a thickness of only 18mm, our intercom system is slimmer than similar products on the market which are usually over 22mm thick. The slim design, combined with a high gloss UV treated surface and a plastic and silicone button structure, offers a superior tactile experience.3. [Intelligent and User Friendly]: Our intercom system is designed with user friendly features, including a talk light and battery light display for easy monitoring. It also comes with a charging dock for smart charging, ensuring the device is always powered and ready for use.4. [High Capacity Battery]: Powered by a 1800mAh polymer battery, our intercom system can last for about a week with normal use (5 calls per day, 30 seconds per call). It also features a standby time of 3-5 days, making it a suitable communicate tool for your home or office.5. [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.Specification:Power Supply Method: polymer battery 1800mAhBattery Powered: DC5V or 1AWorking Temperature: -20 C to 55 CTransmit Distance: Approximately 1000 meters of open space, 20-50 meters of partition walls, floors 1-8Working Frequency: B-gear frequency 462MHz A-gear frequency 434MHzWorking Time: Charge once for about 1 weekCharging Time: Approximately 5 hours when fully chargedStandby Time: 3-5 daysSound Adjustment: 3rd gear adjustableMusic Ringtones: 38 ringtonesVolume: 3 adjustment (standby machine volume adjustment key)Call Sound: 3 adjust call size (adjust volume key during call operation)Color: Black, White (optional)Product Size: 11.6 x 5.6 x 1.8cm or 4.6 x 2.2 x 0.7inchCharging Dock Size: 7 x 5.6 x 2.9cm or 2.8 x 2.2 x 1.1inchAttention: Two must be used together and cannot be used alone.Package List:2 x Indoor Intercom2 x Charging Dock1 x Charging Station Charging Cable1 x Host Charging Cable1 x InstructionNote:Due to the different display screen and light effect, the actual color of the item might be slightly different from the color showed on the pictures.