The product is compatible with most 3.5mm jack electronic devices and light weight, convenient to take along and use. 

Features: 
Compatible with most 3.5mm jack electronic devices.
Safe, high-grade PC, good quality.
3.5mm jack plug, comfortable use.
High sensitivity, good sound quality.
Light weight, convenient to take along and use.
Note:
The product without microphone.

Specifications:
Earphone Type: In-ear
Color: Black
Cable length: 1.2m / 3.9ft
Earphone sensitivity: 110dB
Frequency range: 18-20.000Hz
Speaker impedence: 16ohms
Earphone weight: 11g / 0.38oz
Package size: Approx. 14.6 * 10 * 1cm / 5.7 * 3.9 * 0.4in
Package weight: Approx. 14g / 0.49oz
Package including: 
1 * Earphone
2 * Earbud