- Ideal for MP3 players- Passive noise protection for shielding out exterior noise- Silicone earpads in various sizes for a comfortable fit- Super bass power for powerful bassWhat's in the box - 1 pair of HK-3000 in-ear stereo headphones- 3 pairs of silicone earbuds in different sizes (S M L)Technical SpecificationConnection: 3.5 mm Jack Plug Design: In-Ear Material: Plastic Model: Stereo Sensitivity: 85 dB Waterproof: No Cable Length: 12 m Speaker Diameter: 10 mm Frequency Range: 20 Hz - 20 kHz Impedance: 16 Ω Colour: Silver/Black