REMAX RM 510 In-Ear Earphone With Metal box

• REMAX RM 510 In-Ear Earphone:
• Brand name: REMIX
• Cable length: 1.2m
• Mic Sensitivity: 42+-3dB
• Impedance: 16-15 percentage
• Maximumpower£º10mW
• HD Microphone
• Frequency range: 20-20000HZ
• Level of sensitivity: 87-3dB
• 510 touch music wired earphone
• Compatibility and Comfortable