It seems like you're referring to the "Razer DeathAdder," a popular gaming mouse series produced by Razer Inc. The DeathAdder series is known for its ergonomic design, high-precision sensors, and customizable features, making it a favorite among gamers.

Here are some key features and details about the Razer DeathAdder gaming mouse series:

1. Ergonomic Design: The DeathAdder is designed to be comfortable for right-handed users, with a contoured shape that fits well in the hand and reduces fatigue during long gaming sessions.

2. High-Precision Sensor: Most models in the DeathAdder series come with high-quality optical sensors, offering adjustable DPI (dots per inch) settings for precise tracking and sensitivity customization.

3. Customizable Buttons: The DeathAdder typically features programmable buttons, allowing users to assign specific functions or macros using Razer's Synapse software. This enables quick access to in-game commands and actions.

4. Razer Chroma RGB Lighting: Many DeathAdder models come with customizable RGB lighting zones, allowing users to personalize the mouse's appearance with a wide range of colors and effects using Razer Synapse.

5. Durable Build Quality: Razer gaming mice are known for their durability, featuring high-quality materials and switches rated for millions of clicks.

6. Onboard Memory: Some DeathAdder models come with onboard memory, which allows users to save custom settings directly to the mouse, making them accessible across different computers without needing to reconfigure them each time.

7. Synapse Software Support: Razer Synapse is a software suite that provides users with advanced customization options for their Razer peripherals, including macro recording, DPI adjustment, and RGB lighting control.

The Razer DeathAdder series has several iterations and special editions, each offering different features and specifications. It's a highly regarded gaming mouse series among gamers of all levels, from casual to professional.