GranVela MX330 Dual Dynamic Driver Ear Hook In-Ear Stereo Sport Earphones Noise-isolating Headphones with Microphone,Memory Wire,Remote, and Universal Volume Control (Transparent Blue) Perfect all-range performance: MX-330 is armed with flexible and exquisite high frequency, easily-recognized medium frequency and steady bass. Bass duct design:Powerful Dual Dynamic Drivers for Premium Sound, a high level of sound isolation for immersive audio with extended bass response. Comfortable for wearing: Conforms to the shape of your ears for comfort and a secure fit, close to the cochlea for better effect of sound insulation. Exchangeable Cable: Detachable earphone cables make it easier to replace the cords,so that the service life of earphones is greatly prolonged. Package contents:GranVela MX-330 Earphones, Silicone earbuds * 3 pairs, Headphone storage bag * 1, instruction manual. 12-month warranty and free lifetime technical support