1、Use 4GHz frequency transmission, in line with FCC, CE standards, no delay, stable viewing. 5in high‑resolution display, you can safely observe your baby's home state in real time. 2、With operating menu display, 1 receiver can be connected to 4 transmitters, allowing you to share the baby's various cute states with your relatives and friends. 3、Long‑distance transmission, the transmission distance can reached 200‑300m in open areas, covering most of your choices at home. 4、Clear night vision, can realize 24‑hour monitoring. Half‑duplex voice, the transmission sound quality is clear, allowing you to have an immersive experience when communicating with your baby through the screen. When you are bored, you can also turn into a music player to give your baby feeling of physical and mental pleasure. 5、With for VOX wake‑up function, if the volume on the baby side exceeds a certain value, it will trigger the LCD receiver to work (the screen will turn on after the screen is automatically turned off) to remind parents to check the baby's status. 6、The receiver is powered by a lipo battery, which is convenient for mobile use. At the same time, it has a codes matching function to improve safety and privacies, which is convenient and pays more attention to your safety. 1 x Host 1 x Camera  2 x Charging Cable (AC100V-240V)1 x Hook&Loop 1 x Manual  1 x Expansion Tube 1 x Pointed Screw  Condition: 100% Brand NewItem Type: Baby MonitorMaterial: ABSColor: As picture shownFrame Rate: 15-25 FramesSignal Strength Indication: 4 LevelsVolume Control: 10 LevelsIntercom: Two-way, Half-duplexSound Control Function: Automatically turn on the screen when there is a sound, and there is an alarm sound on the receiving end1 Receiver and Multiple Transmitters: 1 Receiver Can Used with 4 Transmitters, and the Display Can Be SwitchedLcd Size: 3.5 Inches 320x240 RGB Color LCDTransmission Security: It Can Be Used Only After Mutual Codes MatchingLCD Liquid Crystal Display Electrical Parameters:(Power Plug Input AC100V-240V, Output DC 5V/1000MA)LCD Receiving Voltage:DC: 5V/1000MA; Battery: Built-in 3.6v/1000mah Lipo BatteryTransmission Frequency: 2.4GHz ISM BandWireless Working Mode: FHSSTransmitting Power: 19dBm@CW modeTransmission Rate: 3mbpsTransmission Distance: Open Area: 200-300 Meters/ 656.2- 984.3ftOperating Current (Transmitting and Receiving):TX: 400mA maximum, RX: 500mA Maximum, 250ma in Normal Standby Mode, Without Charging CurrentCharging Current: 120-280MAAudio Sampling Rate: 16KAudio Frequency Response Range: 120Hz-3KHzSound Control Starting Level: 35--50db@ Mic InputCamera Resolution: 0.3MPImage Resolution: 320x240qvgaVideo Transmission Rate: 15-25FPSTotal Harmonic Distortion: < 5.0%Signal to Noise Ratio: 46dBReceiving Sensitivity: -96dBm@BER=1e-3Night Vision Distance: Approx. 2-3 Meters/ 6.6- 9.8ftHumidity Range: 20-80% RhTemperature Range: 0℃-45℃