Also available from their website to order and pick up from store if you prefer. Product specs taken from the Yamaha website, will provide links in post #2
Yamaha EPH20BU High Efficiency In Ear Headphones in Blue.
Rock out with Yamaha sound from your mp3 player/iPod with maximum listening comfort noise isolation and high fidelity. In-ear headphones isolate outside noise. Superior audio performance gives you the full range of sound while on the go.
Driver type: Dynamic
Driver unit: Φ10.7mm
Impedance: 17.0 Ω ±30%
Sound pressure level: 103dB ±3dB
Frequency range: 20-21,000Hz
Weight (w/o cable): 3.0g
Weight (w/ cable): 10.0g
Cable length: 48"
Plug: Gold stereo mini (f1/8in)
Included: Ear buds (3 sizes)