Purchased in 2023 and only tested for functionality, never actually used. As I have no plans to use it in the future, I'm offering it to someone who can. As noted in the attached documents, SD card compatibility can vary, so I'm including a Transcend 16GB card. Thank you. The following is a product description: Brand: MAXWIN Model Name: BDVR-A001 Vehicle Type: Motorcycle Connectivity Technology: Wireless Features: Portable Video Capture Resolution: 1440p [Portable 2-Camera Wearable Drive Recorder] Records in Full HD or higher simultaneously from front and rear, capturing more immersive footage. The integrated front and rear 2-camera system allows you to record the rear view as well. It can also record dangerous "aggressive driving" incidents. It can be attached to a helmet or used handheld as an action camera. [Two high-performance, high-quality cameras record clearly] Date and time information is also recorded along with the video data. The recorded video is in MP4 format, so it can be played on most computers. [Compact size, weighing only 97g] The main unit weighs only 97g, making it easy to mount on the side of a helmet without disrupting balance. The main unit also features a stylish design that reduces wind resistance. Its size doesn't interfere with the rider's view or riding experience, regardless of where it's mounted. [Includes two types of mounting brackets. Easy to install and remove, also for theft prevention] Both helmet and handlebar mounts are included for easy removal. Various angle adjustments are possible, allowing you to change the direction of shooting freely. It can also be easily attached and removed, making it portable for theft prevention. [Check the recorded video on the spot with a dedicated smartphone app] You can use Wi-Fi to "check the angle before shooting," "monitor during recording," and "remotely control the camera" on your smartphone or tablet. You can also transfer the recorded videos to your smartphone or tablet and share them on social media or with friends and family. The date and time are automatically set when connecting to the app. *Do not use microSD cards thicker than 0.8mm. This may cause the card slot to jam. We recommend using a domestic genuine microSD card. IPX4 waterproof performance* It is splash-proof, so please be careful as it is not resistant to heavy rain or submersion.