Description: Superior sound quailty: High-performance drivers with earbuds build-in mic, provides high qualified music, outstanding bass and treble clarity. Precise metal construction and aluminium cavity design efficiently reduce background noise, you may enjoy crystal clear sound and a fantastic listening experience. Comfortable and soft: Comfort-fit in-ear earbuds. Pick the perfect one to ensure comfort and long-time wearing. No need to worry it will fall out when you're running, jogging, hiking, and gym training. Slip-free silicone design is soft to use a long time. Waterproof: The circuit board inside about earphones is coated with sweat-proof and corrosion-resistant material. It can withstand sweat, rain, even sports drink, which greatly protects sports headphones from sweat or water. Speaker size: 9mm Frequency range: 20-20,000Hz Frekvensomrade: 20-20,000Hz Sensitivity: 98±3dB(at 1 KHz, 0.5Vrms) Kanslighet: 98±3dB Impedanse: 16Ω±15% Cable length: Approx. 110cm Jack: 3.5mm Note: Use the volume only far enough properly for hearing protection Do not use earphone while driving or while biking Insert earphone into your ears rightly as "L" to left ear and "R" to right ear. Make sure your listening experience do not disturb other people. Package including: 1 x Headphones