The Razer Orochi brings mobile gaming mouse standards to new heights with its small form factor and bleeding-edge technology. Equipped with a gaming-grade laser sensor and dual mode wired/wireless functionality, the Razer Orochi uses Bluetooth technology to address your need for portability and ease of use with a wired mode option for gaming grade performance. Gaming on the go is now possible. Hand Orientation: Both Hands Maximum dpi: 4000 dpi Power Supply: Powered by 2 AA batteries Operating Time: Approx. 1-3 months under normal usage Operating System Supported: Windows XP / x64 / Vista / Vista64 System Requirement: Bluetooth enabled PC with USB port Features: Razer Precision 3G Laser sensor Tracking up to 100 inches per second Ambidextrous design Razer Synapse On-board Memory On-The-Fly Sensitivity adjustment Zero-acoustic Ultraslick Teflon feet Gold-plated USB connector Wireless Mode Gaming optimized Bluetooth 2.0 connectivity Up to 2000DPI sensitivity 125Hz polling/ 8ms response Wired Mode Detachable three foot, lightweight, braided micro-USB cord Up to 4000DPI sensitivity 1000Hz Ultrapolling/ 1ms response Parts: 2 years limited