Features:- >Quality performance with hybrid Quad-driver configuration(per side). >Three high-performance Knowles BA drivers. >One dual-cavity CNT diaphragm dynamic driver. >Four sets of replaceable tuning nozzles. >Three sets of cavity tuning holes. >3D-printed resin cavities with designer face covers. >0.78mm 2-pin connectors. >High-purity Graphene, Copper, Silver Alloy cable. Technical Specifications:- >Impedance: 26Ω. >Sensitivity: 112dB/mW. >Frequency response range: 20Hz-20kHz. >Channel error range: ±0.5dB. >THD+N: <1%. LZ A4 Pro brings you an extraordinary sound experience with a brilliant quad-driver hybrid setup consisting of one CNT dynamic driver and three Knowles balanced armature drivers. The pair has a mixed dual adjustable tone design featuring replaceable tuning nozzles and replaceable cavity holes allowing the users to adjust the tuning as per their own taste and preferences. Experience your favorite music with all new clarity and detail with the LZ A4 Pro. Premium Performance With A Premium Quad-Driver Configuration:- LZ A4 Pro features a four-driver hybrid configuration consisting of one CNT dynamic driver paired with three Knowles balanced armature drivers per side. The pair is tuned by professionals delivering a rich, high-resolution experience with powerful punchy bass, rich vocals, and a smooth non-fatiguing treble response. Adjust The Sound At Your Will:- LZ has featured replaceable sound nozzle and cavity holes that allow the users to adjust the sound as per their preference. The pair comes bundled with three different pairs of sound cavity holes, and four different pairs of ear nozzles. Ergonomic & Comfortable With 3D Printed Ear Shells:- LZ has crafted the beautiful earpieces for A4 Pro using high-precision 3D printing technology. The earpieces are extremely lightweight and sturdy, they have an ergonomic shape to them ensuring a comfortable and firm fit for its users. High-Purity Stock Cable:- LZ A4 Pro adopts 0.78mm 2-pin connectors with a detachable cable design. The pair comes stock with high-purity graphene, copper, silver alloy cable with a standard 3.5mm termination plug. This cable allows smooth signal transmission with low internal resistance ensuring high-quality performance with the pair.