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Black slim ergonomic wireless mouse with silent buttons, dual mode connectivity, rechargeable battery, adjustable DPI up to 4200

BFKK

BFKK SM66 Black Silent Dual Mode Wireless Gaming Mouse 4200 DPI

SKU CH-M30C-953MS

A silent dual-mode wireless mouse with five adjustable DPI levels up to 4200, 99 % noise reduction and a built-in 400 mAh rechargeable battery

  • ColorBlack
  • Silent clicks cut 99% noise for quiet workspaces
  • Dual 2.4 GHz and Bluetooth links up to three devices
  • Five DPI steps from 800 to 4200 suit any task
  • 400 mAh battery with Type-C charging lasts weeks
  • Slim 10 m range design slips into any laptop bag

Purpose & Audience

The BFKK SM66 is a compact wireless gaming mouse built for quiet operation and flexible connectivity. It suits users who need a portable pointing device that pairs with multiple systems without cables.

Who It Fits — And Who It Doesn't

This mouse fits right- or left-handed users with small to medium hands who prefer a claw grip and silent clicks in shared spaces. It is not for buyers who require a larger ergonomic shape, dedicated side buttons, or a sensor with higher maximum sensitivity than 4200 DPI.

Build Integration

The SM66 connects via 2.4 GHz nano receiver or Bluetooth and stores up to three device profiles, freeing USB ports when switching between a PC, laptop, tablet or phone. A built-in 400 mAh lithium-ion cell charges over USB-C and supports use while charging, while automatic sleep after three minutes of inactivity extends battery life between charges.

Highlights

  • Silent clicks cut 99% noise for quiet workspaces
  • Dual 2.4 GHz and Bluetooth links up to three devices
  • Five DPI steps from 800 to 4200 suit any task
  • 400 mAh battery with Type-C charging lasts weeks
  • Slim 10 m range design slips into any laptop bag

Specifications

ColorBlack

Questions about this item

Does the mouse need a free USB-A port for the 2.4 GHz receiver?

Yes, the 2.4 G nano receiver plugs into a USB-A port and is stored in the bottom of the mouse when not in use.

Can the mouse stay paired to a desktop via 2.4 GHz and a laptop via Bluetooth at the same time?

The mouse can save up to three devices and switch between them, so a desktop on 2.4 GHz and a laptop on Bluetooth can both remain paired.

How do I confirm the current DPI setting after pressing the button on the bottom?

Press the DPI button on the underside to cycle through 800, 1200, 1600, 2400 and 4200 DPI; the sensor responds immediately to the new level.

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