Redragon

Redragon BM-4219 Dual-Mode Bluetooth & 2.4GHz Wireless Optical Mouse

Mouse 2.4GHz Wireless

Redragon BM-4219 Wireless Mouse features Bluetooth 5.0 and 2.4GHz connectivity, 7 controls, and 5 adjustable DPI levels up to 4000.

Compatibility Mac PC
Connection Type 2.4GHz Wireless Bluetooth
Battery Life 0 h
Device Type Mouse
Max DPI 4000
Programmable Buttons 0

About the product

Wireless freedom for everyday productivity

Dual-mode Bluetooth and 2.4GHz connectivity
Adjustable optical cursor sensitivity
Dedicated forward and backward navigation buttons
Convenient Bluetooth pairing control
Automatic power-saving sleep mode
Practical design for office and study

The Redragon BM-4219 wireless mouse brings flexible connectivity and adjustable cursor control to your everyday computer setup. Switch between Bluetooth and a dedicated USB wireless receiver depending on your device. Its optical sensor, navigation buttons and selectable sensitivity levels make working with documents, browsing websites and moving between applications more convenient, without a mouse cable across your desk.

Redragon BM-4219 wireless mouse: Choose your connection

Bluetooth 5.0

Connect to a compatible Bluetooth-enabled device without occupying a USB port. Use the mouse's pairing button to begin the Bluetooth connection process.

2.4GHz wireless

Connect the dedicated USB receiver to your computer for wireless cursor control. The receiver connection is recognized and configured automatically.

Two wireless connection options give you more flexibility without changing your everyday workflow.

Optical precision with adjustable DPI

Selectable DPI sensitivity

Level 1 800 DPI
Level 2 1,200 DPI
Level 3 1,600 DPI
Level 4 2,400 DPI
Level 5 4,000 DPI

Selectable DPI sensitivity
Level 1	800 DPI
Level 2	1,200 DPI
Level 3	1,600 DPI
Level 4	2,400 DPI
Level 5	4,000 DPI

Sensitivity levels documented in the BM-4219 instruction manual.

Control your cursor Select a sensitivity level that suits detailed pointer movement or quicker navigation.
Convenient page navigation Dedicated forward and backward side buttons help you move between supported pages without relying entirely on the keyboard.
Flexible desk setup Use Bluetooth when you want to keep a USB port available, or choose the receiver connection for another compatible computer.
Reduced idle power consumption Automatic sleep functionality helps conserve power when you stop using the mouse.

Controls that simplify everyday tasks

Connect your dual-mode wireless mouse

Getting started

Select the wireless mode Use the underside switch to choose Bluetooth or the USB receiver connection.
Connect through the receiver For receiver mode, insert the matching USB receiver into an available computer USB port.
Pair through Bluetooth For Bluetooth mode, hold the pairing button for 3 seconds, then select BT 5.0 Mouse in your device's Bluetooth settings.
Adjust cursor movement Press the DPI button to cycle through the available sensitivity settings.

Technical specifications

Product specifications

Model	Redragon BM-4219
Device type	Wireless Optical Mouse
Wireless modes	2.4GHz Wireless / Bluetooth
Bluetooth device name	BT 5.0 Mouse
Maximum sensitivity	4000 DPI
Main controls	Left click, right click, clickable scroll wheel, forward, backward, DPI adjustment and Bluetooth pairing
Mode switch	BT / OFF / 2.4G
Automatic sleep	After 10 minutes of inactivity

Frequently asked questions

Does the Redragon BM-4219 need a USB dongle for Bluetooth?

No. It pairs directly with compatible Bluetooth-enabled devices. The USB receiver is used for the alternative wireless mode.

Is the Redragon BM-4219 suitable for office work?

Its selectable optical sensitivity, wireless connectivity and dedicated navigation buttons make it practical for documents, browsing and routine computer tasks.

Can I change the DPI on the BM-4219 mouse?

Yes. A dedicated DPI button cycles through the sensitivity settings.

Does the BM-4219 support automatic power saving?

Yes. Its documented sleep function reduces unnecessary power use when the mouse is idle.

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