Keyboard

• SilentTouch Technology
• Adjustable keyboard height
• Spill-resistant design
• 2.4GHz wireless (10 meters)
• Nano USB receiver
• Caps lock indicator light
• On/Off power switch
• 2 AAA batteries(Alkaline Battery)

Mouse

• SilentTouch Technology
• Contoured compact shape
• Smooth, responsive cursor control
• On/off power button
• 1 AA batteries (Alkaline Battery)

• 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

• 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