SE112 Professional Sound Isolating™ Earphones provide great sound and durable build quality through a single, dynamic driver. Discrete, secure design includes a fixed, 3.5 mm (1/8”) audio cable that can be worn over the ears or hanging down based on preference. Sound Isolating technology blocks up to 37 dB of outside noise. Includes a carrying pouch and fit kit with selection of sleeves for custom fit.