• Connection Type: Bluetooth Classic (3.0)
• Wireless range: 33 ft (10 m)
• Customization app: Supported by Logi Options+ on Windows? and macOS?
• Battery: 2 x AAA
• Battery: 24 months
• Indicator Lights (LED): Battery LED, 3 Bluetooth channel LEDs
• Special Keys: Hotkeys (Home, Back, App-switch, Contextual Menu), Easy-Switch?
• Connect / Power: On/Off Switch

• Logitech Unifying protocol: 2.4 GHz
• Bluetooth Smart technology
• Wireless range: 33-ft (10 m) wireless range 
• Wireless encryption: Yes 
• Logitech Options for Mac: OS X 10.8 and above
• Logitech Options for Windows: Windows 7, Windows 8, Windows 10 and above
• Logitech Flow?
• Indicator Lights (LED): 3 Bluetooth channel LEDs
• Battery indicator light: Yes
• Battery: 2 x AAA

• Media-Friendly: The K400 Plus wireless touch TV keyboard gives you integrated, comfortable control of your PC-to-TV entertainment, eliminating the clutter of a separate keyboard and mouse
• Plug-and-Play: Simply plug the Unifying receiver into a USB port and the wireless touchpad keyboard is ready to go; adjust controls using the Logitech Options Software to save preferred settings
• Power-Packed: Built with laid-back control in mind, this wireless TV keyboard has a reliable and long battery life of up to 18 months (2), including an on/off button to help it go even longer
• Wireless Freedom: Designed for seamless comfort and control, this HTPC keyboard boasts a range of up to 33 ft (1) wireless connectivity, with quiet keys and a large touchpad for easy navigation
• Broad Compatibility: Designed for use with Windows 7, Windows 8, Windows 10 and later, Android 7 or later, and Chrome OS
• Durable and Reliable: The spill-resistant design (4) and long-lasting keys keep you on-track despite any mishaps

• Full-size Keyboard: All the keys you need, with a full-sized keyboard layout, number pad and 15 shortcut keys; smooth, curved keys make for a comfortable, familiar typing experience.
• Ambidextrous Mouse: The compact, portable optical mouse is comfortable for both left- and rigt-handed users, and can be taken anywhere your work takes you.
• Plug and Play: The included USB receiver provides a reliable wireless connection up to 33 ft away (3); no need for pairing or software installation to use this keyboard and optical mouse combo
• Extended Battery: Say goodbye to the hassle of charging cables and changing batteries and get up to 3 years of battery life for the keyboard and 1 year for the mouse (1) with MK235
• Durability: The keyboard of the Logitech MK235 wireless keyboard and mouse combo features a spill-proof design (2), anti-fading treatment, and sturdy tilt legs.
• Any Location, Any Occasion: This combo is a reliable and durable partner for your desk at home, or at work

• Logitech Unifying protocol (2.4 GHz)
• Wireless range: >33 ft / 10 m wireless range
• Battery: 2 x AA (included)
• Battery life: 36 months
• Special Keys: Hotkeys (e.g. Internet, e-mail, Media Keys, Volume)
• Key Life: Up to 10 million keystrokes

Keyboard

• Spill-resistant design 1Tested under limited conditions (maximum of 60 ml liquid spillage). Do not immerse the keyboard in liquid.
• Tilt legs
• 10-Key Number pad
• Special Keys: 15 function keys
• Up to 5 million keystrokes
• 2 AAA batteries
• Battery life: 36 months 2Keyboard battery life calculation based on an estimated two million keystrokes/year in an office environment. User experience may vary. Mouse battery life may vary based on user and computing conditions.

Mouse

• Sensor technology: Smooth Optical tracking
• Number of buttons: 3 (Left/Right-click, Middle click)
• Scrolling: line-by-line
• Scroll Wheel: Yes, 2D, optical
• Connect/Power: On/Off power button
• 1 AA batteries
• Battery life: 12 months