The OntheGo Bluetooth Mouse adjusts DPI in four fixed steps, not continuously.

• 800 DPI: the LED flashes once
• 1200 DPI: the LED flashes twice
• 1600 DPI: the LED flashes three times
• 2400 DPI: the LED flashes four times

Press the DPI button to change the DPI level. The charging and DPI LED indicator flashes to show the selected level.