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Description
LA4KE1BMain Range TeSys Device short name LA4K Product or component type Suppressor module Product compatibility LP1 LC1 Complementary Mounting location Front side Mounting mode Clip on Suppressor technology Varistor (peak limiting) [Uc] control circuit voltage 12 24 V DC 12 24 V AC Maximum peak voltage 2 Uc Local signalling LED Quantity per set Set of 5 Height 25 mm Width 6 mm Depth 22 mm Net weight 0. 01 kg Environment Standards VDE 0660 NF C 63 110 BS
Main
| Range | TeSys |
| Device short name | LA4K |
| Product or component type | Suppressor module |
| Product compatibility | LP1 LC1 |
Complementary
| Mounting location | Front side |
| Mounting mode | Clip-on |
| Suppressor technology | Varistor (peak limiting) |
| [Uc] control circuit voltage | 12...24 V DC 12...24 V AC |
| Maximum peak voltage | 2 Uc |
| Local signalling | LED |
| Quantity per set | Set of 5 |
| Height | 25 mm |
| Width | 6 mm |
| Depth | 22 mm |
| Net weight | 0.01 kg |
Environment
| Standards | VDE 0660 NF C 63-110 BS 5424 IEC 60947 |
| Product certifications | CSA UL |
| IP degree of protection | IP2x conforming to VDE 0106 |
| Protective treatment | TC conforming to IEC 60068 TC conforming to DIN 50016 |
| Ambient air temperature for operation | -25…50 °C |
| Ambient air temperature for storage | -50…80 °C |
Offer Sustainability
| Sustainable offer status | Green Premium product |
| REACh Regulation | REACh Declaration |
| REACh free of SVHC | Yes |
| EU RoHS Directive | Compliant EU RoHS Declaration |
| Toxic heavy metal free | Yes |
| Mercury free | Yes |
| RoHS exemption information | Yes |
| China RoHS Regulation | China RoHS declaration |
| Environmental Disclosure | Product Environmental Profile |
| Circularity Profile | No need of specific recycling operations |
| WEEE | The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins |
Contractual warranty
| Warranty | 18 months |
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
4.5 ★★★★★
Based on 767 reviews
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Product Reviews
★★★★★ 5
Wonderful!!
Style: Right-Handed, Pattern Name: Mouse, Color: Graphite
Update -
After using this mouse for over a year I started experiencing something profoundly annoying. When dragging something from one place to another (often from monitor to monitor) I would accidentally hit one of the buttons by the thumb and it would close whatever I was working on. Especially during work where I do this often. I found there is an option to turn these buttons off in the software!!! Wonderful!!!
That was the absolute only thing I was having an issue with. Longevity has been perfect and I'll confess, I'm not particularly regular about cleaning it. I would buy this mouse again in a heartbeat.
I bought this at the same time (Feb '25) as the Logitech Ergo K860 Wireless Ergonomic Keyboard - Split Keyboard, for which I have also written a review.
I cannot say enough good things about both of these products. My neck, shoulders and back feel so much better than with my previous setup.
At the time of purchase, there were a number of reviews saying these failed fairly quickly. This has not been my experience and I am not very conscientious about cleaning it.
After almost a year of heavy use (8-10 hrs a day), the batteries are at 30% which I don't think I can complain about.
These products are not cheap, but for me they have been worth every penny and I cannot see myself going back. I'd buy them again in a heartbeat.
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Reviewed in the United States on January 28, 2026
★★★★★ 5
Easy setup, beautiful red!
Color: Red, Color: Red
I needed a mouse for an assignment when I asked my son for his. I loved it so much that I needed to buy myself one. I bought the red to match my computer (and to know that the navy blue is my son's) and it's a very sleek, not tooo vibrant color. It does come with both an USB & USBC controller (see pictures) and mine connected FAST to my computer. It does NOT come with a battery (most mice won't) so please grab a DOUBLE AA battery before it comes in so you will be ready. I have no issues with the mouse and loved the price point on this one. It's light weight and easy to setup. Then again it was a plug in/play setup, so if you're not tech savvy, you won't have issues with this one. Just choose a color and get it!
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Reviewed in the United States on April 8, 2026
★★★★★ 5
Cut the Cord and Never Looked Back!
Color: Grey
I'd been using a wired mouse forever and kept telling myself the cord wasn't that annoying. Spoiler: it was. The moment I switched to the WisFox 2.4G Wireless Mouse, I realized what I'd been putting up with all along — and there's no going back now.
Setup was dead simple. Plug the little USB receiver into the laptop, and it just works. No drivers to hunt down, no pairing headaches, no nonsense. The 2.4G connection is solid and responsive — I haven't noticed any lag or signal dropout, even when the receiver is tucked into a port on the back of the laptop. The cursor tracks smoothly across my desk surface without any skipping or stuttering.
The ergonomic shape is a genuine plus. It fits naturally in the hand during long sessions and doesn't leave my wrist feeling fatigued the way some flatter mice do. The buttons have a satisfying, tactile click without being loud enough to bother anyone nearby.
My one gripe — and it's pretty minor — is that it runs on batteries, which means you'll eventually need to swap them out. It's not a dealbreaker by any stretch, and the battery life has been reasonable so far, but if you're used to a wired mouse that just runs forever, it's a small adjustment to keep a spare AA or two around.
Pros:
Instant plug-and-play setup with the USB receiver
Reliable, lag-free 2.4G connection
Comfortable ergonomic shape for extended use
Great freedom of movement without cord clutter
Cons:
Runs on batteries — plan to keep a spare on hand
If you're still tethered to a wired mouse and on the fence about making the jump, this is a solid, no-fuss way to do it. Hope this helps!
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Good Work
Color: Grey
Work so good
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Reviewed in the United States on June 11, 2026
★★★★★ 4
OK, Mouse
Color: Grey
It is comfortable to use and it works as advertised.
The button click is soft and quiet, so there is very little tactile feedback. I often drop a selected object in a click and drag motion. The mouse is OK for general use, but I would not recommend it for CAD or art.
This mouse goes to sleep very quickly. I imagine this saves the battery. It doesn't wake on motion, it wakes on button click. With a laptop, the mouse goes to sleep after any short break. It behaves differently than other wireless mice.
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Reviewed in the United States on June 7, 2026