Philips In-Ear Noise canceling Headphones. Philips model number SHN2500. 70% less external noise. Active noise canceling. Switch on to switch off, with these in-ear noise canceling headphones that actively reduce irritating external noise by. . . .

up to 70%. They come with a variety of three cap sizes to ensure a perfect seal and comfortable fit. Ideal for planes and trains. Optimal listening in noisy environments. Creates a perfect seal for perfect sound. Hang the headphones around your neck for convenience. Three interchangeable rubber ear caps for optimal fit. Small control box avoids bulky control boxes. Adapter for in-flight entertainment system connection. 3.5-6.35mm adapter connects to all types of audio devices. A 1.2m long cable that is ideal for outdoor use. Open acoustic system. 50-1,500Hz, > 10dB at 300Hz active noise attenuation. Mylar dome diaphragm. 40-20 000 Hz frequency response. 72 Ohm at 1kHz 72 Ohm. Neodymium magnet type. 15 mW maximum power input. 10 dB at 300Hz noise canceling effect. 102 dB sensitivity. 9 mm speaker diameter. Copper voice coil. 1.5V Battery R03/AAA included. Airplane plug 2. 3.5 mm included. Adapter plug 3.5-6.35 mm included. Storage pouch included. Black.