Reliable and comfortable mouse

I have had this mouse for almost a year and it has been a very good replacement to my old mouse. It connects via Bluetooth without a usb receiver, which frees up a port, but also comes with a usb reciever if you prefer to use it. It was quick to set up, and with the logitech options software it is customizable. The extra buttons are useful and the shape is comfortable in the hand even after many hours. This mouse is not flashy but overall it is worth the price.