The 70mai T400 is a three-channel dash cam system designed to record your journeys from both the front and rear of the vehicle using the RC21 rear camera. It captures video at a resolution of 2560 x 1440 with a wide 147° viewing angle, ensuring a broad perspective of the road at 30 fps. The device is compact, weighing only 140 g and measuring 130 x 33.7 x 41 mm, which allows it to sit discreetly on your windshield via the included adhesive tape. For storage, the system comes with 128 GB of internal memory and can be expanded up to 512 GB using a microSD card. It features integrated GPS and a built-in microphone to capture audio and location data, while a 300 mAh battery provides basic power support. You can manage your recordings and settings through the 70mai App via a fast 802.11 ax Wi-Fi connection, and the unit is powered through a USB Type-C port using the provided cable.