To charge your Delta device, carefully disconnect the strap at the bottom of the screen and connect the USB to a computer or a charger. A fully charged Delta has a battery life of 5 – 7 days. Charging fully takes about 2 hours. Battery life and charge times may vary due to use and other factors.
Insert into the USB port with the metal contacts facing upwards. The device should vibrate for 1-2 seconds and the batter level indicator will indicate the device is charging.