TNU1002 Features: * Headphone * Cushioned ear pads, adjustable headband and lightweight design provide long-lasting comfort * Hi-energy neodymium magnet * Open-back dynamic * Driver diameter: 40 mm * Excellent sound quality for portable audio, video games, computers and home stereo * Excellent sound quality for portable audio, video games, computers and home stereo * Magnet: hi-energy neodymium * Connector: 3.5 mm Stereo mini-plug * Cable: 3.3" (1 m) * Impedance: 40 ohms * Weight : 2.5 oz (70 g) Includes: * 0.25" (6.3 mm) Phone plug adapter included * Accessory Included: 0.25" (6.3 mm) plug adapt Specifications: * Frequency response: 20-20,000 Hz * Maximum input power: 100 mW * Sensitivity: 100 dB