An excellent introduction into premium audio via sound isolation, the SCL2 features single dynamic microdrivers for full sonic range and resonant bass.

Features

• Sound Isolating Technology - The Shure E2c's in ear design, using foam or flex sleeves, naturally blocks background noise. This allows lower listening volumes in loud environments. No batteries or extra equipment are needed for sound isolation.
• High-Performance Dynamic Speakers - The Shure E2c's speakers are constructed with studio-grade components, producing exceptional audio clarity.
• Personal Fit Kit - Because every ear is different, Shure E2c earphones come with three pairs (small, medium, large) of disposable foam sleeves and three pairs (small, medium, large) of flex sleeves to allow you to find the best fit for you - a good seal is key to optimizing sound isolation and bass response as well as maximizing comfort during extended wear. 
• Secure In Ear Design - The soft, flexible sleeves in the Fit Kit gently contour the inside of the ear for a comfortable, secure fit.
• Low-Profile Earphone Cables - The Shure E2c's cables pass behind the ear - out of sight and out of the way - to provide a more comfortable, discreet fit.
• Lightweight Construction - Weighing only 30g, the Shure E2c is lightweight and comfortable for any portable listening application.
• Earphones Carrying Case - The Shure E2c comes with a stylish, compact carrying case. The cable spool inside allows for an easy, tangle-free way to store your earphones.
• Wax Removal Tool - If you notice a change in sound quality, remove the sleeve and check the nozzle of your earphone. If nozzle is blocked, clear obstruction by using wire loop end of cleaning tool.

Specifications

• Frequency Range: 22Hz – 17.5kHz
• Sensitivity: 105dB SPL/mW (@ 1kHz)
• Impedance: 16 Ohms (@ 1kHz)
• Weight: 30g (1oz)
• Input Connector: 3.5mm (1/8”)
• Cable Length: 157 cm (62”)