Feature:1. Retro style round keycaps are made of impact resistant materials, with high strength and wear resistance, and experience the impact of a retro typewriter.2. BT 5.0 supports 3 devices FN master control, which can be operated freely and conveniently in different places of home, school and cafe, and can work and play as you like.3. Retro Typewriter can be disassembled at will, allowing you to use your own keyboard at will.4. Inbuilt battery with a large capacity of up to 2000mA supports wireless use and can last for 16 hours. Even if you charge in the middle, you can use the keyboard at will.5. Innovative design, brushed panel, mobile phone tablet holder, light adjustment rocker, brightness adjustment knob, punk keycap, make your experience unique.Specification:Item Type: Retro Typewriter KeyboardModel: For TW1867Material: ABS, PCBABT Version: 5.0Number of Keycaps: 83 KeysInterface: Type-C PortInput Power or Current: 5V or 110mABattery Type: 2000mAh Rechargeable Li Battery (Inbuilt)Support System: For Win 2000 or XP or Vista or 7 or 8 or 10, for LINUX.Package List:1 x Retro Typewriter Keyboard2 x Replacement Shaft1 x Key Puller1 x Data Cable1 x User ManualNote:Shipped with inbuilt battery.