How to play video 1. Use the usb data cable to connect directly to the computer's USB port and use the player to play the video. 2. Remove the SD card, connect to the computer with a card reader, and play the video. Charging for the type ballpoint pen hidden camera Connect to a USB port on your computer or use a 5V power supply. The red light flashes slowly while charging, and the red light continues to light when the battery is full. 1 Features & details 📷【Multi-functional Spy Recording Pen】Created to capture HD 1080P video at 30 FPS in real time by using a simple one-click system. Support recording video, picture and motion detection. And during the state of “Standby”, this hidden camera with audio can take 2560*1440-pixels photos and automatically save the file into SD card. 👍【Discrete, Portable Design】Our wide-angle spy camera pen has a mini pen body that is easily portable to fit into a shirt pocket, clip onto a notebook, or use on your desk. It's an excellent tool for business, conferences, meetings, evidence-collection, and lectures, etc. 👌【Plug and Play Compatibility】This small camera works with Mac and PC and Linux devices by using a USB cable which included in package, and can transfer and watch data directly when connect with Windows/Mac/Linux PC devices. 💡【Fast Rechargeable Battery】This mini camera spy wireless with audio features a long-lasting internal lithium ion battery than provides up to 70 continuous minutes of recording. 🖋【Writable Pen Use】Along with its use as a hidden camera this pen camera can be used for taking notes, jotting down schedules, or remember important information.