Features:
Perfectly suitable for Smart Phones MP3 MP4 Notebook Laptop Tablet PC and other portable media players with 3.5mm audio port. 
With noise cancellation and rich sound (Bass, Treble).
Offer you clear and smooth sound quality during sports 
Soft ear cushion for comfortable to wear and insulating the noise. 
High-quality built-in microphone.
Easy to use, support plug and play.

Specifications: 
Model Number: HXT-2056
Style: Ear Hook
Connectors: 3.5mm
Function: Noise Cancelling, Microphone
Communication: Wired
Color: Black
Speaker size :10mm
Speaker impedance: 23ohm 
Frequency range :5 Hz ~ 20KHz
Sensitivity:109db (at 1 KHz, 0.5Vrms)
Cable length:120cm
Main item weight: 18g / 0.66oz
Package size: 17.5 * 6.5 * 2.5cm / 6.89 * 2.56 * 0.98in
Package weight: 37g / 1.31oz

Package list:
1 * Headphone
2 * Pair Spare headset caps with different sizes