Yamaha HPH-150 in black, high-end headphonesPerformance headphones; 48Ω; sensitivity 101dB/mW; frequency response 20Hz-20kHz; 40mm driver; open back light weight design; 1/8 TRS plug; 1/4 adapter includedOn-ear, open-air headphones designed for listening and practicing musical instruments.The HPH-150 features a 40 mm diameter, rear-vented driver along with 90-degree swivel angle cups. This allows a comfortable fit for prolonged listening sessions.Comes with a two-meter cable and 6.3 mm to 3.5 mm adapter.