Used for about a year and stored in a desk drawer for another year. This wireless mouse is attractive for its quiet operation, compact size, and light weight. I personally found it very easy to use, but I'm selling it because I've switched to a different mouse with more buttons. * Operation has been confirmed. - Brand: ELECOM - Model: M-TM10BB - Color: Blue It will be shipped in its original box via Yu-Packet Post, Yu-Packet Post Mini, or Nekopos. I aim to ship within 12 hours of purchase. Thank you for your interest.