The headband's side straps are adjustable for a perfect fit. They fold for easy storage in your bag and are compatible with all audio and video players with a jack input. Frequency response: 10 to 24,000 Hz, Impedance (acoustic resistance): 150 Ohms. To protect your hearing, the headphones' power output is limited to a maximum of 100 mW, Sensitivity: 85 dB. Practical folding design. Compatible with Sony PSP, PlayStation Vita, Nintendo DS, and Nintendo 3DS. Very lightweight.
