Sanwa Supply launches three upright-grip wireless mice
The Bluetooth MA-EBBS537BK, 2.4GHz MA-EWBS537BK and dual-mode MA-EWBBS537BK are listed on Amazon.co.jp from 8,250 yen.
Sanwa Supply has released three stick-shaped wireless mice designed for an upright grip, the MA-EBBS537BK, MA-EWBS537BK and MA-EWBBS537BK, the company announced on November 1, 2026. According to Akiba PC Watch, the mice are listed on Amazon.co.jp at 8,250 yen, 8,250 yen and 8,690 yen respectively.
The upright design is intended to let users hold the mouse without twisting the wrist. The left button and wheel button sit on top, the right button is on the rear side, and the back and forward buttons are on the left side. Bundled software can assign functions to the wheel and side buttons, and all buttons use silent switches.
Sensor and battery life
All three models use an optical blue LED sensor with 1,200, 2,400, 3,200 and 4,000 counts per inch, switchable with a button. Charging is over USB Type-C, and the body measures about W76 x D123 x H95mm and weighs about 107g.
The MA-EBBS537BK is the Bluetooth model and runs for 185 hours of continuous use, supplied with a 1.5m USB Type-C charging cable. The MA-EWBS537BK connects over 2.4GHz wireless and runs for 267 hours, while the MA-EWBBS537BK supports both Bluetooth and 2.4GHz wireless with 131 hours of continuous use. The two wireless models ship with a USB-A receiver and a 1.5m USB Type-C charging cable.
Quick answers
How much do the Sanwa Supply upright mice cost?
On Amazon.co.jp, the MA-EBBS537BK and MA-EWBS537BK are 8,250 yen each, and the MA-EWBBS537BK is 8,690 yen.
What is the difference between the three models?
The MA-EBBS537BK is Bluetooth only, the MA-EWBS537BK is 2.4GHz wireless only, and the MA-EWBBS537BK supports both Bluetooth and 2.4GHz wireless.
What sensor do the mice use?
An optical blue LED sensor with 1,200, 2,400, 3,200 and 4,000 counts per inch, switchable by a button.