Red wireless mouse, BSMBB100 series. I bought it two weeks ago, but it doesn't fit my hand, so I'm going to replace it. - Color: Red - Model: BSMBB100 Series - Input Voltage: DC 9-15V 15mA - Brand: Buffalo Inc. - Connection Type: Wireless Thank you for viewing. Power supply: Battery operated (new batteries) Connection type: Wireless (Bluetooth) I am decluttering my home (my parents' house in Tokyo). I may not be able to provide detailed product information, so please make your purchase decision based on the images. Purchases are at your own discretion and responsibility. Also, I will not list items that I suspect are copies or fake brands, but I am an amateur and cannot guarantee this. If you have any concerns, please request additional images or refrain from purchasing. *Please confirm the size primarily through the images (measuring tape is also included in the photos). If you have any questions, please inquire. *Items that fit in a post box will be shipped via Nekopos or Yu-packet Post. Other items will be shipped via宅配便 (courier service). Packaging will use recycled materials. *We do not accept cancellations or returns after shipping. Please consider your purchase carefully. *Please consult Mercari or the shipping company for any damage caused by shipping. *We do not sell items separately. *Items in the background are not included in the product.