When choosing a corded clipper, there are several factors to consider:

1. Motor power: The motor is the most important component of a clipper. Look for a clipper with a powerful motor that can handle thick and coarse hair without overheating or slowing down.

2. Blade type: The type of blade will affect the performance and durability of the clipper. Look for a clipper with high-quality stainless steel blades that are sharp and rust-resistant.

3. Cord length: The length of the cord is an important consideration, especially if you will be using the clipper in a salon or barber shop. Make sure the cord is long enough to reach your work area comfortably.

4. Weight and ergonomics: The weight and shape of the clipper will affect how comfortable it is to use. Look for a clipper that is lightweight and ergonomically designed to reduce hand and wrist fatigue.

5. Accessories and attachments: Some corded clippers come with accessories and attachments such as different blade sizes, comb attachments, and cleaning brushes. Consider what accessories you need and whether they are included with the clipper.

6. Brand reputation and customer reviews: Look for a reputable brand with positive customer reviews. This will give you an idea of the quality and performance of the clipper.

By considering these factors, you can choose a corded clipper that is powerful, durable, comfortable to use, and comes with the accessories and attachments you need for your specific needs.