Corded. Patented Grip Rings prevent plugs from backing out of ear. Easy-Grip handles make for easy insertion and removal. Soft foam helps eliminate "pressure" within the ear canals. NRR 31dB (when used as directed)

Manufacturer: 3M

For More Information on the 3M 312-6001 EARsoft Grippers Corded, [Click Here] to Link to Manufacturer Web Site