Noise Isolating Earphones with Clearwavz Remote and Microphone with 10mm drivers, specifically designed for iOS products, the Brainwavz S1 uses dynamic driver speakers that are housed in an all-metal shell, tuned for powerful bass, sweet vocals and accurate sound reproduction. The headphones operat in the frequency range of 20Hz – 20kHz, the sensitivity is 93dB and rated input power 2mW. Coupled with an audio precision silicon microphone (MEMS - Micro-Electrical-Mechanical System) it comes with a three-button control enabling users to make audio calls as well as playback, easier to control with maximum performance. The package also contains 6 sets of silicone ear tips and a shirt clip. Colour: gray.