This pair of earphones is equipped with a set of triple-flange sleeves, so you can wear it for a long period without hurting your ears. It can produce the best sound while beating and eliminating noises from outside. The earphones are a great audio and computer peripheral.

• Frequency response: 20Hz-20KHz.
• Speaker impedance: 16/32.
• Sensitivity: 90-98dB.
• Waterproof.