I purchased this new in May, but it doesn't fit my hand, so I'm selling it. I've only used it for about 5 minutes, so it's practically brand new. ----------------Product Description---------------- ・A stylish, high-performance wireless mouse from the MX series, designed for portability. Features a quiet MagSpeed electromagnetic scroll wheel. ・Employs a Darkfield 4000 dpi sensor that works on any surface. Tracks accurately even on glass. ・Supports Bluetooth and Logitech's proprietary Unifying USB connection. ・USB-C allows for 3 hours of use with a 1-minute quick charge, and up to 70 days of use with a 2-hour full charge.