The Razer Mamba wireless gaming mouse has seven programmable buttons, a 16K DPI optical sensor, and chroma RGB lighting. Razer Mamba Wireless, Wireless, 7, 50 Million Clicks, 16000, Razer ChromaTM lighting with 16.8 million customizable color options, Gaming, Black, 106 g, Right-Handed Ergonomic right-handed design, With a battery life of up to 50 hours, mechanical switches