MEElectronics SX-31 comfort-fit earbuds are super light with in-the-ear design. Noise sealing features rich sound and minimizes external noises. High performance audio accessory for your iPod, PSP, MP3 player or portable DVD player. Four colors to choose from. Engineered with balanced treble and bass distribution. 3 sets of soft silicon ear pads fit all ears (large, medium, small). Standard 3.5mm connector. Delivers super rich, clean sound. 48-inch straight cord with gold-plated stereo mini-plug. Frequency response: 20-20,000 Hz. Sensitivity: 95dB. Impedance: 16 ohms. Maximum input: 10mW. Tube style retail packaging. Our earphones require proper seal to achieve best sound quality, please choose from provided tip sets that best fits your ears