XBS-i89IN is Luxpro’s ergonomic airtight earphone with bent pipe aluminum alloy housing. The ear cups are milled of aluminum bar and polished, the housing is of higher density factor than that punched by punch. So they increase bass effeciency and ensure high fidelity of the sound. The ear cups also undergoes anodized and sandblasted treatments, their color can ba customized by our clients for the reason of nobleness and elegance. Special configuration of the housing and the application of sophisticated audio expertise ensure excellent sound reproduction and high fidelity. Fshionable appearance, compact in size and lightweight, easy to carry and store. In-ear design provide good attenuation of ambient noise, and ensure fine sound reproduction and comfort for long wearing session.  13.5mm loudspeaker, CCAW voice scoil, and 300kJ/m3 powerful neodymium ferrous magnet system driver unit reinforce the sound resolution, delivering rugged bass and crystal-clear treble. High-elasticity and soft silica gel for the earphone offers confort for long wearing sessions.  Innocuity immovable OFC lacquered wire (0.05x14 x4) minimizes the impedance and power consumption, speeds up the signals and ensures their quality.