From the manufacturer View larger View larger View larger Mi Earphones - Dynamic bass sound - Wired remote - Metal sound chamber - 20-step process High Quality Sound at the Touch of your Fingertips The metal sound chamber manufactured through a 20-step process, produces excellent sound quality. The wired controls allow for easy access to volume and calls. On top of this, the cable’s Kevlar fiber build makes it extremely durable. Improved 3rd Gen Balanced Damping The 3rd generation balanced damping system is uniquely designed to enhance sound and air flow. It separates air flow at the front of the chamber and lets sound through the back to create a mellow and transparent sound. Metal sound chamber crafted in a 20-step process. View larger View larger View larger Aerospace-Grade Metal Diaphragm for a Resonating Bass In order to deliver a superior sound in the mid and bass ranges, we sandwiched an aerospace-grade metal composite layer in between two pet layers. This preserves the outstanding treble responses of metal, while improving richness in the lower ranges thanks to the incredible flexibility of pet. This breakthrough design in Mi earphones provides balanced output and superior definition across the entire frequency range. Controller with Built-in Microphone Reduces interference and provides clearer sound quality. The compact and small MEMS microphone has a 58dB(A) signal to noise ratio which delivers better voice quality and lower noise interferce even when it is located further away from your mouth. Kevlar Fiber Cable Strong, break-resistant kevlar fibers protect wiring and extend its lifespan, while braided sleeving prevents tangling. The end sections are sheathed in TPE to reduce friction with clothing, preventing an annoying 'stethoscope effect' or noise interference. Detailed CD Pattern Fine, detailed 0.14mm grains add a textured metallic luster similar to CD discs. CNC Technology Integrated diamond cut finish with up to 0.01mm precision that creates a delicate touch. Intricately Designed Its ergonomic curves have been carefully conceptualized for utmost comfort, while looking polished and trendy. View larger View larger View larger Wired Remote The wired remote comes with three sleek buttons to answer calls, music playback, and volume adjustment. Fully compatible with Mi phones and most Android devices. Volume buttons currently do not support iOS devices. Ergonomic and Designed for Comfort Based on extensive research, the main body is ergonomically angled to fit your ear canal for long-lasting comfort. This anti-slip design also prevents it from dropping out easily during intense use. We have included 3 different ear bud sizes (XS/S/L) for the perfect fit. High quality silicone ear plugs prevent skin irritation. 90 Degree L-Shaped Phone Connector The phone connector is angled at 90 degree so it exposes lesser wire and ensures durability of earphones. View larger Subjected to Over 700 Reliability Tests The Mi earphones have been rigorously tested for outstanding build quality. It has been subjected to vibration, heat and loading tests that simulate real-life scenarios, as well as extreme high and low temperature tests, its performance and durability. Button, speaker lifespan Cable load bearing Heat Impulse test Heat resistivity Tensile tolerance Tensile tolerance Diaphragm strength Vibration intensity Operation under high and low temperatures Materials reliability Remote compatibility Audio quality check UV resistance