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Description
Logitech K400 Plus keyboard RF Wireless Dutch BlackDevice interface: RF Wireless Connectivity technology: Wireless Keyboard style: Straight Recommended usage: Universal Colour of product: Black Mobile operating systems supported: Android Windows keys: No Frequency band: 2. 4 Receiver included: Yes User guide: Yes Backlight: No Service life of battery: 18 Number of products included: 1 Purpose: Universal Windows operating systems supported: Windows 10 Education Number of batteries supported: 2 Mouse
Device interface: RF WirelessConnectivity technology: Wireless
Keyboard style: Straight
Recommended usage: Universal
Colour of product: Black
Mobile operating systems supported: Android
Windows keys: No
Frequency band: 2.4
Receiver included: Yes
User guide: Yes
Backlight: No
Service life of battery: 18
Number of products included: 1
Purpose: Universal
Windows operating systems supported: Windows 10 Education
Number of batteries supported: 2
Mouse included: No
Keyboard language: Dutch
Numeric keypad: No
Keyboard weight: 380
Keyboard layout: QWERTY
Power source type: Battery
Mac operating systems supported: Mac OS X 10.6 Snow L
Wrist rest: No
Keyboard integrated devices: Touchpad
Surface coloration: Monotone
Hot keys: Yes
Battery type: AA
Wireless receiver interface: USB
Wireless range: 10
Keyboard form factor: Mini
Frequency range: 2.4 GHz
Connector type: USB port
Weight: 390
Type: Wireless Touch Keyboard
Minimum system requirements: Windows 7, Windows 8, Windows 10 or later, Android 5.0 or later, Chrome OS.
Dimensions (WxDxH): 139.9 x 354.3 x 23.5
Package type: • Keyboard• Unifying receiver • 2 AA batteries (pre-installed)• User documentation
Functions: Special keys: Mute, Volume Down, Volume Up, On/Off switch
Wireless connection: Logitech 2.4 GHz Wireless Technology, Wireless range: 10 m (33 ft.)
Colour: Black
Noise level (max): 55
Other features: Key life: Up to 5 million keystrokes
Warranty: 24
Producer product name: K400 Plus
Net weight: 0.40
Gross weight: 0.516
WEE classification: CL109:6:2017-04-01
Paper/Pasteboard: 96
Plastic (No PET): 20
TI weight (kg): 0.022
Composition of battery: CL127:KT:2016-12-09
Classification of battery: CL126:NE:2016-12-09
Embeeded battery: Yes
Type of battery: Battery
Gross height (mm): 32.00
Volume (m3): 0.00186
Gross depth (mm): 375.00
Gross width (mm): 155.00
Tare weight (kg): 0.116
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 8 reviews
Sort
Product Reviews
★★★★★ 4
Surprisingly effective
Size: 1 Ounce (Pack of 1)
I frequently have combo skin with oily, dilated pores on my nose and dryness in other areas. I got this to address blotchy redness (my skin can be especially reactive to too much moisturizer and/or too many actives). Redness Reform definitely helps to calm the redness, but I've been really surprised to see it also calming down my dilated pores and making my skin overall much more balanced.
With consistent twice daily application, I find I'm able to step up my use of retinoids and AHAs without seeing increased irritation. It's been so helpful for multiple concerns that I've already repurchased to make sure I have a new bottle on hand when this one runs out!
Giving 4 stars because I wish there were more product for the price. You can definitely get away with 2 small pumps to cover the face and neck if your skin is moist/hydrated after cleansing, but I find I'm liking to use just a bit more (4 pumps or so) to get really thorough coverage and hone in on the areas that need it most. The other reason it isn't 5/5 for me is because it's too thin to actually deliver on the promise of optical correction. Yes, it's green, but it's doing very, very little short-term to camouflage redness. I do like the consistency, because it does allow a little to go a long way and gives it a higher-end application feel, but it's misleading to suggest that you'll get meaningful color correction while using this product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 14, 2025
★★★★★ 5
Love this serum
Size: 1 Ounce (Pack of 1)
Love this serum and have already gone through several bottles. It really seems to help with small red patches on my face and the arnica helps to calm imperfections down. Great value for the price !
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
★★★★★ 1
NOT for rosacea or ocular rosacea!!
Size: 1 Ounce (Pack of 1)
NOT for rosacea!
I have rosacea and ocular rosacea.
I did a test on the side of my cheek. It seemed to go OK…. When I used it on my entire face, I paid for it for two days!! Caused a nasty flare. This product has GLYCOLIC ACID, very low levels of it, but it does nonetheless. It was a disaster for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026
★★★★★ 5
Soothing
Size: 1 Ounce (Pack of 1)
Cooling and soothing. Reduces redness and rosacea symptoms. I’ve repurchased many times for my sensitive skin.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
★★★★★ 3
Like but...
Size: 1 Ounce (Pack of 1)
Was nice and light on my skin but did not see much improvement of redness after 6 weeks. No fragrance, did not irratate skin. May try another bottle incase it wasn't enough time to see results. Overall I like the product just not the results at this time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
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