-> Foldable & Flexible design, place it anywhere and don't need to worry about bother of wire. -> And this Compact book light can be taken with you on the go and works without cords. -> USB rechargeable instead of batteries. Just use a USB cable to connect to computer or the charger. -> Made from environmental white maple wooden material, applied with lasing cutting technology to ensure that bending doesn't cause damage to lamp. Specification: Light Color: 3 light Dimmable Operating Voltage: DC5V 1A Battery voltage: 3.7V/1700mah Charging voltage: DC5V 1A Light Source: LED Lights Charge by: USB Charging time: 5 hours Usage Time: 5-8 hours Support: Foldable Materials: Environmentally friendly