Measurements by Hangout.Audio The Rockies is NiceHCK's flagship top-of-the-line IEM featuring a tribrid EST configuration for powerful bass, clear mids, and smooth treble. Housed in ergonomic resin shells and capped with alluring natural Pietersite gemstone faceplates, they deliver a natural, immersive sound signature ideal for all genres. With a detachable 0.78mm 2-pin cable, interchangeable 3.5mm and 4.4mm terminations, comfortable fit, and high-resolution tuning, the Rockies offer both premium sound and high-end craftsmanship in one stylish package. What You Get NiceHCK Rockies IEM (1DD+2BA+2EST) Detachable high-purity oxygen-free silver-plated copper cable Interchangeable 3.5mm single ended and 4.4 balanced connectors for universal compatibility 12 pairs of silicone tips of a variety of sizes (S/M/L) Cleaning tool Cable clip Premium IEM carrying case Specs Driver configuration: 1DD + 2 Knowles BA + 2 Sonion EST Connectivity: 0.78mm 2-pin Cable material: Hybrid Silver Plated Furukawa Copper + 7N OCC Impedance: 9.8Ω @ 1kHz Sensitivity: 121dB/Vrms @ 1kHz Frequency range: 20Hz ~ 20,000Hz
