Product Features and Technical Details Product Features Customized fit for outstanding noise reduction Reduces up to 90% of noise pollution Includes vital travel accessories including ear adapters, clothing clip, airline/impedance adapter, case and cleaning tool Shorter, dynamic drivers for full-spectrum sound without deep ear penetration Compatible with all devices with 3.5mm stereo plug (1/8 inch) Technical Details Brand Name: Sennheiser Model: CX6 Headphones Form Factor: In-ear ear-bud (with over-the-ear mount) Headphones Technology: Binaural Item Weight: 0.49 pounds