Pioneer SE-CL502-R Lightweight In-Ear Headphone - Red These fully-enclosed headphones have been specially designed to prevent sound from escaping so that you can enjoy fully immersive listening. Comfortable and stylish, they feature an ergonomic design which will fit perfectly within your ear and come complete with a choice of earbuds, so you can find the ideal size for you. Lightweight and effortlessly portable, these little headphones are the perfect accessory. Features: Driver Units: 9 mm Frequency Response: 20-20.000 Hz Impedance: 16 Ohm Max. Input Power 100 mW Sensitivity 100 dB Plug: 3.5 mm 4P stereo mini-plug (gold) Cable Length: 1,2 m Colour: Red