Your style. Your sound. Your music.Optimal sound exactly where it belongs. With the in-ear headphones, Panasonic focuses on precision fit for an intense sound experience.In-ears that sit really firmly in the earOptimal fitThe TCM115 series in-ear headphones sit firmly and comfortably in the ear. They won't slip, and the optimal fit shields outside noise for an intense music experience.Mobile phone and easy button operationController and microphoneWhen the TCM115 is connected to a smartphone (with 3.5mm connector), the controller in the cable (with one-button operation) can be used to conveniently answer and end phone calls or control music playback without having to pick up the mobile device.Features: -In-Ear headphones -Sensitivity: 109 dB/mW -Driver unit: 9 mm -Frequency response: 10 Hz - 24 Hz -Magnet type: Neodymium -Controller / Microphone -Impedance: 16 ohm -Cable length: 1.2 m.