Purchased from the Logitech official website in March 2025. I accidentally bought it, so it's only been opened. It has not been used. Bluetooth connection is not supported. A wireless mouse with an ergonomic design that fits the hand and is 90% silent. - Brand: logi - Model: M331n - Color: White - Features: 90% silent, curved design and thumb area that fits the hand - Warranty period: 2 years - Connection type: Wireless - Features: Silent Touch technology - Shape: Ergonomic design Thank you for looking.