Thank you for viewing this item from among the many products available. This is a new, unopened Logicool ERGO. I kept it at home as a spare, but I am selling it because I don't use it. To prevent product substitution, returns and cancellations of transactions are not possible. Thank you for your understanding. 【Ergonomic Design】 The MX ERGO adopts an ergonomic design that is designed to reduce wrist strain. It maintains comfort even during long hours of use. 【Wireless Connection and Rechargeable Battery】 Wireless connectivity frees you from the hassle of cables, and the rechargeable battery allows for long hours of use. 【Eco-Label Certified】 This product is environmentally friendly and has been awarded the AGB eco-label. It is ideal for users seeking sustainable choices. - Model Name: MX ERGO - Brand: logicool - Ergonomic Design: Yes - Wireless Connection: Yes - Rechargeable Battery: Yes - Eco-Label: AGB