Westone Audio is a world-renowned American designer and manufacturer of high-quality earphones, hearing protection and audiological products with over 60 years of experience. Westone products protect and support the hearing of musicians, sound engineers and pilots alike. The Pro X30 features three proprietary Balanced Armature drivers with a 3-way passive crossover. Each driver is designed to bring out the previously hidden details of the songs you hear and increase clarity in specific parts of the frequency range. This gives you a solid and well-defined soundstage for both performances and studio sessions. Designed specifically for musicians, the Pro X30 delivers a soundstage with powerful bass, articulate mids, and crystal-clear highs. The incredible sound of the Pro X30 meets the needs of the most demanding musicians and music lovers alike, providing the power, force and output for any stage, from intimate venues to large arenas. Westone Audio's proprietary silicone and comfort foam ear tips are available in five different sizes to provide an excellent fit and superior noise isolation. Ambient noise is passively reduced by an average of 25 dB, making the Pro X30 the perfect choice for use on stage, in the studio, and in other noisy environments. The Pro X30 is ideal for vocalists and music lovers seeking a balanced sound signature.