<p><strong>THIGNS YOU NEED TO KNOW:</strong></p><p>1. There are 3 levels of power. For timers, there are 5/10/15/20 minutes adjustment. </p><p>2. The product is equipped with a lithium-ion battery. When the host sends a continuous ‘beep, beep, beep’, it needs to be charged for about 3 hours. In order to maintain the life of the machine, the user is required to charge the battery every 2 or 3 months, even if the user does not intend to use the unit for a period of time.</p><p> </p><p><strong>Package Include:</strong></p><p>1 x Red Light Therapy Device </p><p>1 x User Manual</p><p>1 x USB cable</p><p>1 x Adapter</p><p><br></p>