portable foldable LED table lamp with calendar clock with USB charger port. Portable foldable LED table lamp with calendar clock and USB rechargeable, FUNCTIONS: USB charging port ... ultra-long lighting, calendar clock, built-in lithium battery, Power: USB 5V/500mA, 3.7V/1000 mAh lithium battery ... , power for calendar: CR2025/3V. Accessories: adaptor, USB line, ...