The manual says it can be rechared 300 times. Does that mean its useless after 300 times charging?

Rechargeable batteries all have a lifespan. Over time they will deteriorate and hold less of a charge. Anything with a rechargeable battery that is not replaceable will be defunct after some period of time. 300 charges is the mtbf (mean time between failure) rate, meaning will last about that many charges. However, given several months per charge, this is still several years. You could use one that is battery operated, and thus buy batteries every few months instead.

I lost the usb dongle receiver, is there anyway I can get a spare one?

Here is our support email address: 【 support.7lucky@foxmail.com 】 What we sold on Amazon not only products, but also service. Please contact us through this email address with your order number, we will send you a new one for free. :) Remember that every 7Lucky product comes with 2 year warranty. Our team is ready and waiting to help. :)

Where is the wireless USB receiver?

The USB receiver is at the bottom of the mouse.

Does anyone have trouble with the buttons double clicking when pressed only once? If so, how can that be fixed?

Restore mouse setting: -Re-insert the usb receiver into another usb port of the computer -Turn on the power switch again -Press and hold the right button and middle button（scrolling wheel）on the mouse, and keep holding the buttons for three more seconds then release the buttons. If it still can not work well, please contact customer support, Susan will send you a new replacement asap.

Lekvey Rechargeable Ergonomic Mouse

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Description

🖱️ Elevate your workflow with comfort and precision — because your wrist deserves the best!

POWER THAT LASTS - Built-in 600mAh rechargeable battery delivers over 150 hours of wireless use—ditch disposable batteries forever.
ERGONOMIC MASTERY - Scientifically designed vertical grip reduces wrist strain and prevents RSI, making long workdays pain-free.
PLUG PLAY FREEDOM - Nano USB receiver ensures instant, driver-free connectivity—no Bluetooth hassle, just effortless productivity.
PRECISION ON DEMAND - Three adjustable DPI settings let you switch seamlessly between smooth browsing and pixel-perfect control.
UNIVERSAL COMPATIBILITY - Works flawlessly across Windows, Mac OS, and Linux, so you’re covered no matter your setup.

The Lekvey Ergonomic Mouse is a rechargeable, vertical wireless mouse engineered to promote a natural handshake grip that reduces wrist strain and prevents repetitive stress injuries. Featuring a 600mAh battery with over 150 hours of use per charge, three adjustable DPI levels for tailored precision, and a plug-and-play nano USB receiver, it offers seamless compatibility with Windows, Mac, and Linux systems. Designed for professionals and gamers alike, this sleek mouse combines comfort, convenience, and cutting-edge ergonomic technology backed by a 36-month warranty.

Specifications

ASIN	B07BFCVJZC
Additional Features	Ergonomic Design, Rechargeable, Soundless, Wireless
Antenna Location	Home, Office, Study
Battery Average Life	150 hours
Best Sellers Rank	#104 in Computer Mice
Brand	Lekvey
Button Quantity	6
Color	Black
Compatible Devices	Desktop, Laptop, Notebook, Personal Computer
Connectivity Technology	Radio Frequency
Customer Reviews	4.3 out of 5 stars 15,478 Reviews
EU Spare Part Availability Duration	3 years
Enclosure Material	Plastic
Global Trade Identification Number	00788537150725
Hand Orientation	Right
Hardware Platform	Desktop, Laptop, PC
Included Components	1 x 2.4G USB Receiver, 1 x Lekvey Rechargeable Wireless Ergonomic Mouse, 1 x USB A to USB C Charging Cable ( 150cm ), 1 x User Manual, 36 Months Warranty ( Replacement or Refund ). Customer Service Email: [email protected]
Item Dimensions L x W	5"L x 3"W
Item Weight	3.36 ounces
Manufacturer	LEKVEY
Mfr Part Number	7L-01
Minimum Required Operating System Version	Windows 2000 Professional
Model Number	7L-01
Mouse Maximum Sensitivity	1600 dots_per_inch
Movement Detection	Optical
Movement Detection Technology	Optical
Number of Batteries	1 Lithium Polymer batteries required. (included)
Number of Buttons	6
Operating System	Windows 2000 / XP / 95 / 98 / Vista / 7 / 8 / 10 / 11/ Linux / Mac OS
Power Source	Battery Powered
Range	10 meters
Special Feature	Ergonomic Design, Rechargeable, Soundless, Wireless
Style Name	Wireless USB Connection
Theme	Ergonomics
UPC	788537150725
Unit Count	1 Count
Warranty Description	1

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