1、Electronic Image Stabilization: Bike Helmet adopts a larger sensor size, all glass lens set, equipped with high definition image camera, to achieve high definition recording quality, detailed road conditions can be clearly seen. Whether you are riding, skating, skiing, or chasing with your kids, you will be able to enjoy smoother effects without fear of violent shaking. 2、High Definition Video Recording: Smart helmets use more lifelike colours and 4K HD image quality to bring recorded images to life. 4K video looks even better when played back on a 4K enabled monitor or TV. 3、130° Wide Angle Lens: The 130° wide angle lens, with an image sensor, enables the camera to take 16:9 wide angle shots, resulting in outstanding immersive video and enhanced action oriented first viewing angle images. 4、Loop Recording: Smart cycling helmet is able to start looping video recording with one click, when the memory is full, it automatically deletes the earliest recorded unlocked video and saves the new video, seamlessly looping and utilising the memory space. When the smart cycling helmet is crashed, the file will be saved urgently. 5、Real Time Video Viewing: Real time view of recorded video, no need to pull out the card, WiFi hotspot fast connection, real time view, recorded video accident forensics, beautiful view sharing a key to complete; mobile phone APP to download and install the for Woutdoor APP, turn on the software through the Wi Fi connection APP can be viewed in real time. Item Type: Smart Bike Helmet Material: PC+EPS Colour: Black Battery Type: Built in 1600mAh Li ion battery (included), support replacement Storage Capacity: Built in 32GB TF card (included), supports up to 512GB TF card Video Format: MP4 Video Recording: 4K (3840x2160) Video Stabilisation: 6 axis electronic stabilisation Video Frame Rate: 30 fps Application APP: For Woutdoor 1 x Smart Helmet 1 x Goggle 1 x 32GB TF Card 1 x Data Cable 1 x Storage Bag 1 x Instruction Manual