TRIPLE KNOWLES BALANCED ARMATURE DRIVERS: With two-way crossover provide enhanced headroom and dynamic range for live audio reproduction. DUAL LOW-MID DRIVERS: With dedicated high-frequency driver deliver additional detail and clarity across all frequency ranges. PERFORM FIT DESIGN: Offers secure, comfortable fit with consistent seal for reliable performance during extended use sessions. TACTILE RED DOT MARKING: Allows immediate right-side identification in low-light stage environments or backstage conditions. TRUSTED BY LEGENDS: Ultimate Ears has built over 100,000 custom monitors for professional artists since 1995, earning recognition as the go-to choice for serious musicians worldwide. The UE 350’s three Knowles balanced armature drivers with a two-way crossover deliver powerful bass, mids, and crisp highs with superior headroom and dynamic range. Dual low-mid drivers cut distortion for clean sound at high volumes. Musicians hear every detail on loud stages, while engineers trust accurate mixes in the studio. PerForm Fit ensures a snug, comfy seal for consistent bass and isolation. Black Carbon faceplate looks pro, with tactile marking for quick side ID. Built for any artist or instrument or DJ across a wide range of genres, with strain-relieved cables. Works with standard systems and wireless packs. Perfect for all instruments, vocals, and DJs. Multiple silicone tips fit different ear sizes. Carrying case included.