This product is either discontinued or we cannot get that from suppliers.
Razer Mamba Wireless RZ01-02710100, Right-handed Wireless Gaming Mouse, Battry Up to 50 Hours, Optical, 16000-Dpi, 450-Ips, 50 Million Clicks, Standard Braided Cable, Tilt Scroll Wheel.
The Razer Mamba Wireless features battery life of up to 50 hours on a single charge. Enjoy enhanced tracking accuracy with our acclaimed Razer 5 Generation Advanced Optical Sensor featuring true 16,000 DPI.