The HPH-MT7 is a closed wired over-ear headphone from Yamaha, built with a moderate impedance and adapter-equipped cable. It is Yamaha's monitoring-oriented headphone.
Key specs that matter
Rated response is 15 Hz to 25 000 Hz, a wide window typical of a monitoring-focused design. Sensitivity is 99 dB per milliwatt into 49 ohms. The cable terminates in a 3.5mm stereo connector with an included 6.3mm stereo adaptor for studio equipment or a home amplifier's larger headphone jack. Weight is 360 g, substantial for a closed over-ear design.
Sound and use context
Expect an accurate, monitoring-oriented character with attention to tonal neutrality rather than an enhanced consumer voicing.
Pairing
The 49 ohm impedance and 99 dB sensitivity are within reach of most phones and portable sources, and a dedicated headphone amplifier also suits the monitoring-oriented design.
Alternatives
Yamaha's broader headphone range includes both more accessible and more elaborate models at different price points.