Compact design and portability: The selfie remote is compact and lightweight. It can be hung on a keychain or carried in a pocket or camera bag. A hand strap provides quick, secure handling. Application and compatibility: Designed for YI Technology Cameras with selftimer (firmware must be updated to V1.1.0 or above). Uses Bluetooth 4.1 and is compatible with mainstream mobile phones and tablets. Easy to use: The wireless shutter connects with Bluetooth 4.1 with a single pairing and minimal setup, enabling quick and reliable use. images: Oneclick operation lets you capture photos and videos clearly and stably, helping you publish shots. Use scenarios: Selfies with a YI camera on travel, at events, or daytoday moments without asking a friend to take the photo. Group photos with smartphones or tablets where you want everyone to fit in the frame. Vlogging or when you need to start recording from a distance, keeping your hands for other tasks.