Logitech M545 Wireless Mouse introduced October 2014 W26,000 at larger On-Line discount stores
Manufacturer’s specification : 2.4GHz USB 5-button on Logitech Unified USB Receiver System | battery indicator | up-down left-right tilt wheel | maximum signal range 10 meters | available in either silver, blue, red or black exterior color
shown above compared to long-time favourite Logitech M705 introduced October 2009, whose characteristic and witnessed that its batteries last a whopping three years ! but know the latter at Right is slightly small although thick for a main-frame mouse measuring 11 x 7 x 4cm, while M545 at Left is mere 10 x 5.5 x 3.5cm so should be intended carry along with your notebook or laptop for travel, unless your hand is quite small . and with an assortment of bright colors to choose from : this is a very cute model from big-time mouse maker Logitech //
– Korea Tech BLog –