Configuration B Version is Battery Operated
SCIENTIFIC ERGONOMIC DESIGN: The ergonomic design offers your hand maximum support for lasting comfort, Encourages healthy neutral "handshake" wrist and arm positions for smoother movement and less overall strain.
RECHARGEABLE WIRELESS MOUSE: Built-in high capacity rechargeable battery, no longer needs to buy batteries. Easy to charge through micro USB charging cable (Approx. 2-hour full). Auto sleep mode and awake the wireless mouse by pressing any key. Supports continue to use while charging so you don’t have to worry about running out of power.
STABLE CONNECTION WITH LESS NOISE CLICK: Deliver a powerful, reliable 2.4GHz wireless mouse connection with high anti-interference performance with 32.8ft/10M transmission distance. Quieter click makes you concentrate on the work without disturbing others beside you. Just Plug and Play!One Nano USB receiver at the bottom of mouse
6 BUTTONS AND 3 ADJUSTABLE DPI: Added next/previous functionality buttons provide convenience when web page browsing; the superior choice for internet surfers, players and people who work at length at the computer. 800 / 1200 / 1600 DPI Resolution Optical Tracking Technology provides more sensitivity than standard optical mice for smooth and precise tracking on a wide range of surfaces.
WIDE COMPATIBILITY: Well compatible with Windows7/8/10/XP, Vista7/8, and Linux, etc. Fits for desktop, laptop, PC, Macbook and other devices.
Note: Not compatible with Mac OS, Apple Products2 AAA Batteries required, not enclosed
Country of manufacture unknown