Headphone for MP4/New/Old Nano.

Features:
1. Revolutionary headphone.
2. Complete access to your iPod Nano click wheel and display.
3. Connect to other audio player via cable (included).
4. No batterles required.
5. Driver Unit: 40mm dia. Dome.
6. Impedance: 32 Ohms.
7. Sensitivity: 108dB+3dB.
8. Frequency Response: 20Hz to 20KHz.
9. Extending cable 3.5m length.
（Just slide your iPod Nano or MP4 into the slot on the left ear cup and enjoy hours of your favorite music without wires. Soft, full-size ear cups comfortably surround your ears, whil the adjustable headbandfits snugly over your head.Complete access to your iPod Nano/MP4 click wheel and display.）