These Giant Earbud Speakers are compatible with your iPod, MP3 / MP4 Player.

Specification:-

• Power supply: DC5.0V (USB cable for PC)
• Output power: 2W*2
• Frequency response: 20-200KHZ
• Impedance: 4Ohm
• Unit Speaker: 50mm*2
• Signal to noise ratio: >>75db
• Plug: Stereo 3.5mm
• For use with iPod, MP3 / MP4 players