The C3's Elegantly Designed and Sound Tuned to Reproduce Natural Vocals and Tight Bass Sound Quality: - Aluminum housing and base construction to reduce vibration - 10 mm wide-spectrum enclosed dynamic driver - Tight bass reproduction and clear mid-range for beautiful vocals - Low-impedance design delivers punchy volume Headphone Design: - High-texture alumite-processed finish in choice of three colors - Unified color scheme for headphone, earphone tip, and cable - Compact in-line mic with call accept/end function - Lightweight, compact, and comfortable for on the go movement - Selection of four silicon earphone tip sizes fit most ear (XS/S/M/L) - 1.2 m (4 ft.) cable with gold-plated 3.5 mm (1/8") 4-pole stereo mini-plug Specifications & Accessories: - Type: Fully enclosed dynamic headphones - Driver: 10 mm (13/32") dynamic driver - Impedance: 16 ohms - Frequency response: 8 Hz-22 kHz - Sensitivity: 100 dB - Maximum input power: 100 mW (JEITA) - Weight: 6 g (0.21 oz.) not including cable - Cable type: 1.2 m (4 ft.) 4-pole 3.5 mm (1/8") stereo mini-plug - Supplied with XS/S/M/L silicon earphone tips, user manual, and warranty card What's in the box Supplied with XS/S/M/L silicon earphone tips, user manual