The METRO.Fi 150 in-ear headphones from Ultimate Ears provide terrific sound quality in a lightweight and portable package that's ideal for active lifestyles. The in-ear design fits snugly in your ear canal to provide a stable, comfortable fit and excellent ambient noise isolation. Three sizes of ear tips and one set of dual-flange silicone eartips are provided to give you the best fit possible, as well as maximize noise isolation and improve bass response.
The headphones use a single high-performance dynamic speaker to provide outstanding audio with a wide frequency response. The low-friction fabric cable helps keep tangles to a minimum, and has a standard 3.5mm stereo mini plug for wide compatibility with MP3 players, CD players, and other media devices. A pocket-size hard travel case is included for storing your headphones.
| Type | In-Ear |
| Frequency Range | 20Hz - 20kHz |
| Impedance | 16Ω |
| Sensitivity | 106dB |
| Maximum Input Power | Not Specified by Manufacturer |
| Connectors | 3.5mm Stereo Mini Plug |
| Cable Length | 46" (1.2m) |
| Weight | Not Specified by Manufacturer |