Why choose Srnubi official store? 1. Fast and punctual logistics: Russia: 7-20 days to arrive, Russia IML warehouse: within 7 days to arrive Korea: 4-10 days to arrive Europe: Arrival in 7-15 days 2. Free resend service: Regarding logistics damage/non human damage or inability to power on/screen flicker 3. o mode: SPK+FM+AUX+Bluetooth 5.0 4. Phone connection mode: carplay/android auto/apple airplay/android mirror Rear camera optional Resolution: 1920 * 1080P Max External Memory: 256G Wireless IOS Carplay & Android Auto Dual Channel Recording Front camera is 4K 3840*2160P + Rear camera is 1080P Intelligent Vioce Control Only have English Language Voice control reconition, control equipment, no need to operate with both hands, reduce the risk of manual operation when driving, and avoid wake-up voice control operation during driving. Currently, this product only supportsEnglishcommand. Support Command: 1, Show Front Camera / Show Rear Camera / Show all cameras 2, Turn on Display / Turn off Display Please strictly follow the instructions we wrote, otherwise, the recorder will not respond! GPS Track Playback & GPS Navigation Note:This function only need connect Our GPS Module! Search compatible for ' GVPlayer ',download and install, you can use to play driving track history. 5G Hz WiFi & APP Connection srnubi built with the latest 5G Hz High-Speed WiFi. You can connect your mobile phone through the WIFI APP. You can view images in real time and quickly download videos and pictures recorded by DVR. Support FM / AUX / SPK / Bluetooth 5.0 Srnubi Added Bluetooth output o to the car o system. Bluetooth output o is more stable and has better sound quality. If your car is not using AUX o well, you can change it to Bluetooth output o. When you use AUX cable to output o to the car o system, you need to select AUX mode. Otherwise, it will have no sound Package includes AUX cable Supports 4 display modes 1. Large screen Carplay & Android Auto view. / 2. Split screen Carplay mode+reverse camera view 3. Large screen front camera view / 4. Split screen front camera+reverse camera view Real-time Reversing View When reversing, the system will automatically turn on the rear high-definition reversing camera. Loop Recording Automatically overwrite the previous recordings with new files except locked files when the memory card is full.