Enjoy your next book without any battery change interruptions. Simply plug in the Usb cable for the book light to recharge and be ready for your next read within an hour. A sturdy clip firmly affixes to your pages. Adjust the flexible neck to your desired lighting position, allowing the two LEDs to distribute the bright light evenly.2 LEDsContinuously dimmableBattery life: up to 60 hoursLow battery life indicator: 10%Integrated rechargeable battery and micro Usb recharging cable included Full recharging time: 1 hourFlexible and durable silicone and Abs plastic Sturdy clip firmly affixes to pages Measures 10" x 1" x 4" Imported.