Ofcourse this product is ultimate one, i bought it for 494 rs. Flipkart delivery is good with good packaging. these are some of my pros and cons after 5 days of usage
pros:
1) which is handy easy and comfort to use
2) installation is so easy support win 8.1 also
3) because of nano receiver we can keep the receiver to laptop or pc.
4) which require low power because there is no led inside.

i suggest buyer to buy this product with thinking more. good product from logitech,but as here mentione...

I got it for Rs 529...my friend got it for 450rs..mouse is very good ... firstly i thought it is damage piece bcz it has no laser light..but it is working fine. And one more thing..it comes with logitech new logo..see pic

Good Product

very amazing product, build quality is strong, connection is very fast, easy to connect, fast delivery, auto power off is veery helpful

More than 5 years of use and still working like bread and butter....Thumbs up 👌👌👌👌

I'm currently working from home due to this virus situation and the mouse provided by my company is terrible. I purchased this after looking at the specs and battery life and so far it has been great in terms of performance. No lag or connection issues and has been running smoothly.

best quality product

Best mouse

Very good price. Quick delivery, Nice looking mouse, Great for everyday use. But the mouse is very light, not having a right weight. Did not try on glass surface

Excellent wireless mouse in this price range. I got this at 450 Rs. B220 is somewhat has more silent clicks but this works perfectly fine without any doubt.