Features:1. 12 languages can be freely switched2. Support TF card, maximum support up to 128G3. No WIFI wireless visual doorbell, more secure information4. Wireless installation, one key pairing, installation is more convenient5. 4.3 inch IPS screen, full-view angle display, clearly visible6. 4G private protocol, long transmission distance, more powerful signal7. Video two-way intercom8. Doorbell ultra-low power consumption, long standby.9. Indoor machine long plug mode, fast response10. The system automatically stores photos and inserts the card to automatically record the video11. Outside night vision function12. Come with 6 doorbell music switching Specification:Image sensor: GC0328 / 85 degrees / 6 infrared light fill lightDisplay: 4.3 inch IPS screenVideo resolution: 640 * 480Battery model: 800 mAh, permanent endurance of 1-3 months [depends different use of the situation]SD card:Maximum support for 128G/MJEPG format [not included]Audio information: built-in speaker, microphoneWIFI mode: 2.4G private protocol, transmission distance 1-150 metresElectrical information: DC5V/2AOperating temperature: -10~60Operating humidity: 10%~90%Display size: about 11.2*9.3*1.8cmDisplay weight: about 133gDoorbell size: about 8.5*4.8*2cmDoorbell weight: about 51gCharging interface: Type-CLanguage/LanguageEnglish,Chinese,Korean,Russian,Japanese,French,Ltalian,German,etc.Operation mode:1.Install the doorbell in the doorway where it is convenient to remind, you can choose the base fixing or film sticking fixing, also can be used together.2. The screen can be placed in a good location for reminding, the screen can be fixed on the wall or placed on the table or cabinet.3. The product can be adjusted brightness, prompt volume, date and time, language, etc., press the M key to enter, -, + sign up and down, the phone key to confirm entry, exit can press the M key.4. Doorbell answer intercom, key answer key and can be Note:1. The product screen has a protective film, the screen is not touch-screen models2. The screen needs to be switched on, the doorbell button can be activated3. Product charging DC5V/2A adapter, can not exceed, or easy to burn the device4.The product does not come with a memory cardProduct list:Doorbell *1Doorbell base+film*1Display monitor*1Screen base + film *1Charging cable *1Manual*1