Ergonomically designed wireless optical mouse with RPET surface. DPI button included. Requires: 1xAA not included. With plug and play system, no installation required. Presented in an attractive kraft design box. RPET material is made from recycled plastic, thus promoting the reuse of plastic waste and helping the sustainability of the planet. Wireless. Optical. DPI Button. 1 Battery AA Not Included Polyester RPET