Pioneer SE MHR5 hi res audio headphones description.

• Newly developed 40 mm high perfomance driver for excellent sound balanc
• Perfectly balanced acoustics and optimum passive sound isolation
• Detachable 3.5 mm cable and symmetric 2.5 mm 4-pole cable supplied
• Frequency Response 7-50000 Hz
• Impedance 45 Ω
• Max. Endurance 1000mW
• Max. efficiency 102dB
• 3.5mm (gold)
• 2-way folding mechanism
• Ear pads with memory foam urethane cushioning and comfortable headband
• Weight 240 g (without cable)