Retro Typing Keyboard, 83 Keys with Adjustable Brightness, Wired and Wireless with Tablet Stand, Removable Round Cap Punk Vintage Keys, WIN/MAC-ios The Bluetooth mechanical keyboard uses round keys with four axes, fingers do not get tired when typing, even after long hours of work. This makes the user feel a softer sensation when pressing the keys. The white background light effect has been added to enrich the atmosphere. To adjust the lighting mode of the white LED, just pull the dual-stable switch. Plus, you can adjust the brightness of the lights by turning the scroll wheel. Supports connection in three modes (wired, wireless, Bluetooth). Bluetooth 5.0 is easier to connect. The keyboard of the typewriter has a built-in lithium battery with a capacity of 2000 mAh and a low power consumption module, which ensures longer battery life. In addition, the device automatically goes into hibernation after 2 minutes of inactivity. The keyboard is compatible with phones, tablets and laptops running on Android, Windows 10, iOS and OS X, and can also be connected to a desktop computer using a USB cable. - Inner mesh panties Material: metal, plastic, electronics Type: Mechanical Keyboard Number of keys: 83 QWERTY keys Interface: TYPE C Computer Connection: Wireless Are there multimedia function keys: yes Shortcut keys: yes Waterproof Function Support: Waterproof Key technology: mechanical axes Backlight function: backlight support Operating current when backlight is always on: 150 MA Operating current when backlight is off: 8 MA Bluetooth sleep current: 0,6 MA Operating Voltage: 3,7 V Operating Mode: Wired, Wireless, Bluetooth Hibernation time: 2 minutes after the device does not automatically work in hibernation state, press any key to wake up The cardboard packaging is damaged. A4-KR