Earpump Twirl Features These nifty tri-colored earphones are part of the Earpump series, featuring Earpump’s signature bass power. Comes in a variety of colors and features an ultra high gloss finish resembling precious stones. Technical Specifications Speaker Dimension : 11mm Impedance : 32? Sensitivity : 105dB Frequency Response : 20Hz – 20kHz Cord length : 1.3m works with all mobile devices with 3.5mm jack Supreme audio quality from the Earpump legacy Premium quality silicon gel included (4 sets) Built-in high sensitivity push-to-talk microphone Soft travel pouch included