KINDLY REMINDER: In order to protect the device, it cannot be turned on during charging. PLEASE CHARGE THE DEVICE CONTINUOUSLY FOR 2-3 HOURS. AND TAKE OFF THE CHARGER AFTER FULLY CHARGING AND THEN USE IT AGAIN. Professional Red Light Therapy Device - Holsn red light therapy lamp employs combined 650nm & 808nm near infrared therapy frequencies, powerful yet completely natural technologies to give you an all in one red light therapy wand. 14pcs x 650nm and 3pcs x 808nm. More lights have been added to increase the efficiency of use. Fun and Relaxing to Use - Self-care Made Easy This professional red light system is suitable for small parts such as the neck, elbow, arm, thigh and knee to reduce pain. So that you can feel the healing effect of both red & infrared light on your muscles & joints, and help you tackle both recovery of scar tissue & pain from injuries, making coming back from a sprain or hard fall easier. Convenient Features - Enhanced features including an LED display allow you to quickly create your custom treatments. A premium lithium rechargeable battery lets you charge it so you can use it cord free. Lastly, a built in timer feature lets you pre-set how long you want each treatment to last. It will automatically power down once the timer runs out, so you know you're finished. What's in the box 1 Holsn host, charging cable, adpter, instruction manual. Holsn is loved by over 120,000 customers around the world Get yours now Ergonomic Design And 7/24 After Service: With a streamlined design and extremely light weight of 0.48 lbs, this Pain Relief Therapy Device is safe and portable when you are at home or traveling.