... mobile phone earphone/cell phone earphone *apply to 3G mobile phone, iphone *handsfree *in-ear, 5 colors *CE,FCC,RoHS Mobile phone earphones, mobile phone accessory, 3G mobile phone earphones,cell phone ... +/-1.5dB difference of two ears, uniform and mixed, avoid the hearing-impaired. Sound effect: ... care about the details, blend the natural environment and modern technology. *Package: 1) Each piece has ...