The Charge is our smallest, most portable and mobile red light therapy device. It features a rechargeable 10,000mAh lithium ion battery with included charging cable so you can take your red light therapy with you on the go! The Charge will give you about 10 ten minute treatments on a single battery charge. Then, once it needs to be recharged, it can fully charge in about 8 hours. It's lightweight and portable, weighing in at less than 1.3 lbs and measures 5.9 x 3.9 x 1.3 inches! The Charge comes with a quality, zippered travel carrying case as well, making it easy to take with you when you travel.