I bought this for work, but it turns out I can't use it with my company's PC due to company rules, so I'm selling it (T-T) The box has been opened, but the item is unused. Price negotiations are welcome. 【Product Overview】 - Brand: Razer - Model Name: Naga V2 Hyperspeed - Type: Wireless Gaming Mouse - Programmable Buttons: 19 - Number of Buttons (Total): 21 - Battery Life: Up to 400 hours (*Up to 400 hours via BLUETOOTH, up to 250 hours via RAZER HYPERSPEED WIRELESS) - Connection Method: USB Type-A port or Bluetooth 5.0