[Easy to operate] The C20 is designed to be easy to use. Simply turn on the switch to start recording or video shooting, and turn it off with a light touch. Easily switch between recording and video modes.[1920P HD resolution] Experience the clear visual effects of 1920P HD resolution. The original HD optical CMOS lens and uncompressed AVI format ensure vivid and delicate images. C20 is equipped with a high-performance image sensor that provides rich high dynamic range for a better visual experience.[High Frame Sync] Enjoy 1920P HD picture quality, smooth synchronized voice and video at 30 frames per second. C20 ensures that voice synchronization is without delay, providing a seamless recording experience.[Effective noise reduction] C20 adopts a high-performance noise reduction chip to suppress background noise and ensure clear and dynamic audio recording. Advanced audio processing chip improves the recording quality of voice and video.[Auto loop recording] Automatic loop recording allows you to never miss any wonderful moments. C20 will overwrite old files as needed to ensure continuous and up-to-date recording. When the battery is low, the device will save the current file before shutting down to prevent data loss.[Expandable Memory and Portable Design] With an expandable memory card slot, you can store a large number of shots. The detachable back clip design is convenient to wear and carry. It is only 6.4 cm and weighs about 19.7 grams, which is very suitable for travel and daily use. [Real-time playback and OTG transmission] Connect via OTG to transfer and view files on your phone. It is compatible with Android and Apple systems and supports real-time playback and file management. [Wide range of uses] The C20 is suitable for a variety of scenarios, including life recording, work documents, and outdoor adventures. Its compact size and powerful functions make it a versatile tool for all your recording needs.