Brand: i.VALUX This is a recharge battery charger compatible with Apple watch series: 9 8 Ultra 7 6 5 4 3 2 Has a built-in 1000mAh lithium-ion battery bank, lightweight and portable easily packed in your bag with the key ring, hooks the backpack pocket to carry it anywhere, extends your i-watch life once low power emergency condition, portable charger power bank Portable key chain design, easy to pick to your purse, wristlet, crossbody, backpack, wallet, or pants. It’s light weight and tiny, use the USB charging cable to any large capacity power bank, computer, or USB outlet. Great for charging for Apple watch when on the road, office, work, travel, camping, and or while driving. LED Indicator lights: 1 —- 0%-25% 2 —- 25%-50% 3 —- 50%-75% 4 —- 75%-100% charged As a gift, useful present for your mother, father, wife, kids, friends, girlfriends and other family members, it's An ideal's choice when Christmas, Thanksgiving Day, Birthday, or New Year Charge time for your watch: within 2-4 hours fully charge, based on the fact that this charger is fully charged