Fangrui Product Details Upgraded 3 Brightness To Chosse - 7led And 3 Brightness Modes In Total, Featuring 3 Color Temperatures(3000k To 6500k), Press The Switch And Hold For 3 Seconds To Change Light Color. Satisfying Different Light Needs In Daily Life, Such As Reading, Working, Studying, Sewing. Easy To Charge - Built In Rechargeable Lithium Battery And Micro-usb Port. Enjoy Your Wireless 30 Hours Reading Without Charging At Brightness Setting (warm, Low). Standard Android Micro-usb Cable Included. Allowing You To Recharge Your Book Light Via Laptop, Power Banks, 5v Phone Charger (not Included). Eye-protection No Flicker - There Are 3 Colors Levels, Stable And The Brightness That Keeps Your Eyes Comfortable And Protect Your Eyes From Shining Hurt And Radiation. Lightweight Portable Design - Small In Size, 2.82oz Lightweight, As Book Lights, Bedside Lamps, Music Stand Light, Computer Light, Desk Light Or For Headboard Reading, Camping, Kids Night Reading, Study, Keyboard, Kindle, Makeup, Sewing, Painting, Tai