FEATURES Stereo headset for music and telephone conversations by connecting it with a smartphone that has a dia. 3.5 mm 4-conductor mini plug. The microphone area has a built-in call pick-up/termination switch. Adjusting the volume is also possible. Uses a flat cable that is easy to handle and is tangle-resistant. The color of its cable is the same as that of its body, so that it might make a good fashion item. The cable has a slider for preventing it from tangling. Reproduces well-balanced sound, from the low pitch to the high pitch. In-ear type to provide high sound insulation and fit your ears perfectly, which also means you do not have to worry about messing up your hair. Uses the a "type-L" plug for compact connection with a smartphone. Includes four pairs of ear caps in different sizes to fit your ears (XS/S/M/L). Specifications Supported devices: smartphones with a 4-conductor dia. 3.5 mm mini jack Sound system: airtight Fit style: in-ear type Driver unit: dynamic, dia. 9 mm Impedance: 16 Ω Sound pressure sensitivity: 98 dB/mW Max. input power: 8 mW Frequency range: 20 Hz to 20 kHz Cable length: 1.2 m (Y-type) Plug: 4-conductor dia. 3.5 mm mini plug (L-type) Dimensions: headset – W 14 × D 21 × H 19 mm; mic – W 8 × D 7 × H 33 mm (excl. cable) Weight: headset – approx. 3 g; mic – approx. 3 g (excl. cable) Contents: ear caps × 4 (XS/S/M/L), manual × 1