Features Top view Left button Connection-mode lights • White LED blinking: device is not connected to computer Right button • LED lighting solid white: device is connected to computer Scroll wheel Forward button Connection-mode button Backward button Charging/low battery lights •...
Shortcut gestures Scroll and Tilt 4-way scroll Forward function Press the front button on the side. Backward function Press the rear button on the side. │ Shortcut gestures...
Info tab. • Upgrade the latest firmware updates on your devices. • Pair additional devices through the Dell Universal Dongle or directly to your computer through Bluetooth. • Change device DPI setting by selecting Device Settings > DPI Setting at the down-right corner of the window.
Setting up your wireless mouse 1. Locate the slot on the side of the mouse cover. Using your fingertip, pry open the cover. 2. Remove the Dell Universal Dongle from its compartment. 3. Replace the mouse cover. │ Setting up your wireless mouse...
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Setting up your wireless mouse 4. Slide the power switch down to turn on the wireless mouse. NOTE: Ensure that the distance between your computer and mouse is within ten meters. │ Setting up your wireless mouse...
Pairing your wireless mouse Your Dell wireless mouse can be paired via the Dell Universal Dongle or direct Bluetooth connection. You can pair and switch between a laptop, desktop, and a compatible mobile device. Pairing with the Dell Universal Dongle NOTE: You can connect a device to your wireless mouse using the Dell Peripheral Manager.
Bluetooth driver to the latest version on your computer. For more information, see Drivers & Downloads at https://www.dell.com/support 1. Press the connection-mode button twice on your wireless mouse (within 3 seconds)
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Click Add Bluetooth or other device > Bluetooth. e. From the list of available devices, click Dell Mouse. NOTE: If Mouse MS7421W is not listed, ensure that the pairing mode is enabled on the wireless mouse. 4. Confirm that both the wireless mouse and the device are paired.
Bluetooth driver to the latest version on your computer. For more information, see Drivers & Downloads at https://www.dell.com/support 1. Press the connection-mode button twice on your wireless mouse (within 3 seconds) until...
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Click Add Bluetooth or other device > Bluetooth. e. From the list of available devices, click Dell Mouse. NOTE: If Mouse MS7421W is not listed, ensure that the pairing mode is enabled on the wireless mouse. 4. The third Bluetooth connection light turns solid white for 3 seconds to confirm the connection is established then dims off.
Charging your wireless mouse 1. When the amber LED of mouse blinks, you need to charge your wireless mouse. 2. Connect the USB-C cable to your wireless mouse. 3. Connect the USB-C cable to your laptop or desktop computer Desktop Laptop 4.
Specifications General Mouse model number MS7421W Connection type 2.4 GHz Wireless & Bluetooth dual mode technology Supported operating systems • Windows 10/8/7/XP (2.4 GHz) • Server 2008/Server 2012 • Linux 6.x, Ubuntu, Free DOS, • Chrome and Android • MAC OS Supported operating systems •...
If the battery is fully depleted, the battery- status light will not turn on. 3. Ensure that the Dell Universal Dongle is directly connected to your computer. Avoid using the port replicators, USB hubs, and so on.
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Problems Possible causes Possible solutions Unable to pair the The Bluetooth icon on 1. Check the battery level. wireless mouse the computer does not This wireless mouse uses a to the computer light up when connecting rechargeable battery, please using Bluetooth the wireless mouse to the ensure that the battery is fully computer.
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Problems Possible causes Possible solutions Mouse pointer The wireless mouse 1. Check the battery level does not move pointer is not responding This wireless mouse uses a rechargeable battery, please ensure that the battery is fully Left/right buttons No response when the charged.
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3. Restart your computer. Wireless Previously paired mouse 1. Ensure that the Dell Universal connection is lost no longer works on the Dongle is connected directly computer to your computer.
Dell system, it will follow the system warranty. For U.S. customers: This purchase and your use of this product are subject to Dell’s end user agreement, which you can find at Dell.com/terms. This document contains a binding arbitration clause.