The Sennheiser IE 400 PRO dynamic, in-ear headphones for wireless monitoring systems offer musicians, DJs, and sound engineers a rich listening experience with clear, studio-like accuracy when performing in quiet to moderately loud stage environments. With a secure, comfortable fit rivalling custom-moulded models for isolation, the IE 400 PRO shields the user from excessive-stage volumes and poor room acoustics to deliver punchy sound with the transparent midrange.

Made to exacting specifications at Sennheiser's German factory, the clear IE 400 PRO features elegant, low-profile housings that are built to survive the rigours of live gigging, while providing a secure, comfortable fit so you can wear them for hours without fatigue. With the IE 400 PRO monitors, you can forget you're even wearing in-ears and feel more connected with your music and the audience, allowing you to perform at your best.

IE 400 PRO vs IE 500 PRO

• The IE 500 PRO delivers a few extra dBs of sound pressure level—which can be crucial on loud stages and in clubs.
• Compared to the IE 400 PRO, the IE 500 PRO offers a slightly wider frequency response and added presence in the midrange, allowing artists to localize themselves in the mix more easily.
• The cable on the IE 500 PRO features a twisted-pair design for increased resistance to structure-borne noise.
• Recommended applications for the iE 400 PRO: quiet to moderately loud musical genres—jazz, blues, acoustic, country, pop, and more.