Bluetooth Remote Control: Connects via Bluetooth, suitable for iPhone and Android systems. Please note that the iOS version should be higher than 14.8, and the AssistiveTouch accessibility function should be enabled (Tip: Open Settings > Accessibility > Touch > Turn on AssistiveTouch). If it still doesn't work, restart your phone. TikTok Bluetooth Remote Control: Simple and convenient to use. When watching TikTok, use the TikTok scroll ring to browse videos, control the volume, pause and play, and click the "like" button to free your hands! *Also applicable for Kindle applications, please note that it is a Kindle application on your phone, not a Kindle device. Bluetooth Camera Remote Control: The Bluetooth remote control ring can control the camera shutter on your mobile phone, and the signal transmission range is 10 meters, so you can take creative selfies or videos without holding a mobile phone. Enjoy the beautiful moment. Rechargeable: The TikTok remote control ring can be used for 14 hours on a single charge, and it can be used for a total of 86 hours with the charging box. The included Type-C cable can be used to charge the charging box. Portable: Small and beautiful, convenient to carry and easy to take with you. You will receive: Bluetooth ring + charging box + Type-C data cable + user manual + packaging.