Features of JC261P car surveillance camera that works with a 4G SIM card: Supports LiveStream feature via mobile or computer and communication with the driver or passengers and hearing their voices. Supports Wi-Fi Hotspot broadcasting inside the vehicle. Supports built-in GPS feature to know (shooting location + date + time + vehicle speed). Ability to monitor driver speed, sudden vehicle acceleration, sudden braking, movement inside the cabin, lane departure, and alert for sharp turns. Ability to track more than one vehicle in the same application and view all vehicle routes and locations up to 6 months prior. Ability to follow vehicle movements for more than one user at the same time and from anywhere. Car surveillance cameras support memory up to 256 GB, and recording extends up to a full week (depending on vehicle usage). Input for (data SIM card + storage memory) with a special key and lock to prevent tampering and preserve previous recordings. Supports pairing with the mobile via the Tracksolid Pro application on iPhone and Android. A data SIM card must be provided by the customer.