Logitech MK540 Wireless Keyboard and Mouse CALCULATOR ECO Mode Operating mode that

ECO Mode Operating mode that by-passes unused electrical components in good power conditions to achieve high operating efficiency without sacrificing protection

It can be used in any country and no need to worry about the band limitation

Speech-detecting accelerometer

which has increased the probability of surveillance network malfunction

Logitech MK540 Wireless Keyboard and Mouse CALCULATOR ECO Mode Operating mode thatThe MK540 Advanced is an instantly familiar wireless keyboard and mouse combo built for precision, comfort, and reliability. The MK540 Advanced is an instantly familiar wireless keyboard and mouse combo built for precision, comfort, and reliability. The full size keyboard features a familiar key shape, size, and feeling and the contoured and ambidextrous mouse has been designed to fit comfortably into either palm. PLUG AND PLAY WIRELESS COMBO Connect