Video & Photo - Insert a formatted Micro SD card, max support 32GB, not included. - Press the Operation Button for about 3 seconds to power on the camera. After power on the camera, a solid Blue LED is visible. - When Blue LED is lighting, press one time the Button to take a photo. Read the file You can read the files via a data cable or use a card reader. It is recommended that you use the VLC player to play the videos Bluetooth Press the Bluetooth Button for about 3 seconds, you will hear “Power ON”, then you can pair the device in your phone Bluetooth setting, the device named “SM21”. After you connect, you will hear "Pair completed", then you can normal use it as a Bluetooth headset. 1080P camera Freeing up your hands, you can swoop through the camera to capture videos as you take part in various sports, these sunglasses are comfortable to wear and are widely used when driving, cycling, hiking, hunting and fishing. Tips The camera function will not work when the power is lower than 15%. If the sunglasses can't be charged, please check if you charged wrong port or change another USB cable to try. Please charge the sunglasses in time when the power is low, to avoid the battery will be damaged and result in charging problem. Please prepare a Class 10 card of no more than 32GB before use, as this is not included. The TF card is only used for taking photos and videos, you cannot listen to songs on the TF card. Note Before you start to use, please tear the lens protective film. Only the Right micro USB is also charge port, please attention the sign. This product does not contain micro sd card. Insert a formatted Micro SD card; max support 32GB(not included). What’s in the package? Sunglasses camera*1 Headsets*2 Sunglass case*1 USB cable*1 Cleaning cloth*1 Manual*1