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Free Budget Shipping
Many items at NothingButSavings.com offer FREE Budget Shipping. Plus, as with many of our competitors which do offer free shipping, we don't ask you to spend a specified amount in order to qualify for FREE Budget Shipping.
How do I qualify for Free Budget Shipping?
1. Add the item(s) that qualifies for FREE Budget Shipping to your order's shopping cart.
2. If a product has our "Free Shipping" tag that item will qualify for FREE Buget Shipping regardless of its price.
3. Proceed to checkout and select Budget Shipping as your shipping option (items will take an additional 7-10 business days to ship).
4. Ship your item(s) to a valid U.S. address.
5. Then, complete your order. It's that simple!
6. FREE Budget Shipping excludes certain oversized and/or overweight items, and those products that do not include this tag.
Some items may be excluded:
If certain items in your shopping cart are not eligible for Budet Shipping then buedget Shipping will not be available and thus the offer for Free Budget Shipping will not apply.
Free Budget Shipping is not available for International orders.
| Discover Signature Comfort M840 L, created for all-day comfort with a natural shape for right hands and cozy side grips. Enjoy smooth SmartWheel scrolling and quiet clicks-making every navigation peaceful and precise. Effortlessly switch between up to three devices with Bluetooth and Easy-Switch, with no dongle required. Connect wirelessly across Windows, macOS, Chrome OS, Linux, iPadOS, and Android for a seamless working experience. With up to 24 months of battery life, you can work, create, and stay connected with fewer interruptions and more focus. |
| Pointing Device Connectivity Technology: | Wireless |
| Pointing Device Wireless Technology: | Bluetooth/Radio Frequency |
| Wireless Operating Frequency: | 2.40 GHz |
| Movement Detection: | Optical |
| Movement Resolution (dpi): | 4000 |
| Total Number of Buttons: | 6 |
| Scroller Type: | Scroll Wheel |
| Pointing Device Features: | Silent |
| Pointing Device Features: | Customizable Keys |
| Pointing Device Features: | Comfort Grip |
| Pointing Device Features: | Contour |
| Pointing Device Features: | Side Grip |
| Pointing Device Features: | Fast Scrolling |
| Pointing Device Features: | Quiet Clicks |
| Pointing Device Features: | Adjustable DPI |
| Pointing Device Features: | Easy-Switch |
| Ergonomic Fit: | Right-handed |
| Wireless Receiver Interface: | USB |
| Pointing Device Host Interface: | USB |
| Number of Batteries Supported: | 1 |
| Battery Size Supported: | AA |
| Maximum Battery Life: | 2 Year |
| Battery Included: | Yes |
| Power Source: | Batteries |
| Color Family: | White |
| Product Color: | Off White |
| Product Material: | Recycled Plastic |
| Height: | 4.8" |
| Width: | 2.9" |
| Depth: | 1.7" |
| Weight (Approximate): | 3.63 oz |
| Package Contents: |
|
| Operating System Compatibility: | ChromeOS |
| Operating System Compatibility: | Linux |
| Operating System Compatibility: | Windows 10 |
| Operating System Compatibility: | Windows 11 |
| Operating System Compatibility: | Mac OS X 12.0 Monterey |
| Operating System Compatibility: | iPadOS 15 |
| Operating System Compatibility: | Android 12 |
| Platform Supported: | PC |
| Platform Supported: | Mac |
| Post-consumer-waste%: | 50% |
| Limited Warranty: | 1 Year |
![]() | WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov. |
Product images may differ from actual product appearance.
- This item cannot be shipped to PO Boxes.
- This item can be shipped only within the U.S.
- UPC: 097855209931
- Mfr's Part #: 910-007713


Many items at NothingButSavings.com offer FREE Budget Shipping. Plus, as with many
of our competitors which do offer free shipping, we don't ask you to spend a specified
amount in order to qualify for FREE Budget Shipping.









