When You Start The Recording The Indicator Light will be Off Usb Plug And Play For Pcs , Works As A Ball Point Pen Status Indicator , Reset Button , Weight : Very Light In Handling. KINDLY CONTACT US IF U ARE HAVING TROUBLE USING THE PEN CAMERA CT DETAIL. Kindly keep the product charged before using it. Dear Customer our company gives product.our product offers latest versionand it functions very smoothly. Kindly open the bottom part of pen camera to insert the memory card properly and Start video : press ON/OFF button for 5 second with soft hand and than leave, You will see the green light on . Again press the same button for 3seconds and then leave Light will continous blink three times and it will get switch off that means recording is started. For switch off the recording ;Kindly hold the top ON/ OFF again with the soft hand for 5second red light will indicate 1times and it will get switch off then use usb cable and attached laptop or desktop. IF YOU ARE UNABLE TO SEE THE VIDEO AND ONLY AUDIO SOUND IS COMING SO PLEASE KINDLY DOWNLOAD THE VLC MEDIA PLAYER TO PLAY THE FILE .(Charge camera for 40 minutes only), SD Card Support 8/16/32GB (sd card not included)