Features: The round keycaps are made of inpact-resistant material,high strength and wear-risistant,and experience the refreshing feeling of striking like a retro typewriter. Wired connection computer, wireless Bluetooth-compatible connection mobile phone, tablet, notebook, support simultaneous connection three Bluetooth-compatible devices. Brushed panel, mobile phone tablet holder, light adjustment rocker, brightness adjustment rotation. The full keyboard is not a mechanical green shaft, and the classic appearance has a classic quality.Colorful / white backlight, meet the game scene needs. Waterproof Wear-resistant Game Configuration suit office / game entertainment. Package Includes: 1PC x Retro Typewriter Keyboard Specifications: Interface Type: Bluetooth Keyboard weight: 730 grams Product Size: approx. 31x17x3cm / 12.20x6.69x1.18inches Number of buttons: 83 keys Operating voltage:5V Battery:2000mAh Color: black khaki note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!