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- USA
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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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Description
MK321BT Bluetooth 5.1 3 Keys Custom Keys Game Office PS Clip Macro Programming KeypadFeatures: 1. Power Supply: inner 230mAh Li Battery charging via USB Type C cable 2. Comfortable buttons, multi system compatibility 3. The multi function can be customized through the software, which can be triggered at one touch 4. Suitable for office, games, multimedia and other occasions 5. The hand feels light and comfortable, and the non stick tape quickly rebounds when pressed, which can be used for a long time 6. Simple operation, no need to
Features:1.Power Supply: inner 230mAh Li-Battery charging via USB Type-C cable
2. Comfortable buttons, multi-system compatibility
3. The multi-function can be customized through the software, which can be triggered at one touch
4. Suitable for office, games, multimedia and other occasions
5. The hand feels light and comfortable, and the non-stick tape quickly rebounds when pressed, which can be used for a long time
6. Simple operation, no need to drive, connect with data cable, after saving the software settings, it can be used
7. Game: One-click to realize multiple sets of commands for games; Office: One-click to open multi-layer folders; Network: One-click to open favorite pages or APPs; Design: One-click to realize combination key commands
8. Comfortable buttons, rounded arcs, ergonomic, fit the finger pulp
9. Set the button function through the software and save it to take effect
10. There are LED lights under the buttons, and various lighting effects can be set through the software
11. The green shaft button, the percussion is crisp, the ear is loud and crisp, and the mechanical sense is strong
12. Anti-slip foot pads can make the product stand more stable
Parameter:
1. Material: plastic
2. Number of keys: 3 keys
3. Interface: USB
4. Line length: 1.5 meters
5. Shaft body: green shaft
6. Function: keyboard, mouse, multimedia, string, game, macro definition
7. Button life: 50 million times
8. Dimensions: 7.5 x 3.7 x 2.8cm
9. Weight: about 32g
Specification:
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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
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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]
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4.4 ★★★★★
Based on 1410 reviews
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Product Reviews
★★★★★ 5
Black but don’t worry it is supposed to be. It works!
Size: 1 Liter
This stuff looks like used motor oil but don’t worry that is the molybdenum disulfide (MoS₂) which is black. This stuff in a small engine makes it smooth as silk. I used it all season in my leaf vacuum small engine. I could hear the difference. It was quieter and smoother.
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Reviewed in the United States on December 7, 2025
★★★★★ 5
High Quality Oil
Size: 5 Liter
Good quality oil! I was just buying the mos2 separate until now
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Reviewed in the United States on January 15, 2026
★★★★★ 5
Recomendado
Size: 5 Liter
Uno de los mejores aceite
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Reviewed in the United States on March 11, 2026
★★★★★ 5
Works just like the Mercedessource guy said it would.
Size: 5 Liter
After viewing a Mercedessource video (trusted Mercedes repair advice Youtuber and blogger) on which oil he liked for higher mileage Mercedes he pointed this out Semi-synthetic 10w-40 out. Called it “muddy” oil. Said it possibly helped with small oil seal leaks and seemed to slow oil loss in higer miles Mercedes. Also made the engines run more quietly. So I have been using in my wife’s high mileage Mercedes (185,000miles W211 2004 E500 4matic) which we baby and I work on. A true very high compression super car, everything he said at Mercedessource has turned out to be accurate. No more leaks. Quiet lifters. Cooler running. Wow. I had been using Mobil 1 full synthetic 0W-40 European Car Formula exclusively but tried this for the seal protection. Works great and no, it is not Mercedes spec but I will see when the harsh Utah winter hits. May switch to the Liqui-Moly 5W-40 Leichtlauf full synthetic (which does meet Mercedes 722.9 oil spec) for winter (I change the oil every 6 months regardless). Thanks for reading.
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Reviewed in the United States on July 12, 2018
★★★★★ 3
I typed in 5 QT Containers in search line.
Size: 1 Liter
Containers were not 5QT. like I had typed into search bar. They Are 1QT. Lots of Money for ONE QUART OF OIL
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Reviewed in the United States on February 25, 2024