• Driver unit: 40mm
• Impedance: 32Ω
• Frequency response: 20Hz to 20kHz
• Sensitivity: 115 ±3dB (at 1kHz)
• Maximum input power: 50mW
• Plug type: 3.5mm stereo
• Cord length: 1.2m
• With clear digital sound
• In-line volume control
• OEM service are accepted
• Customized earphones colors, cable materials, speaker specifications and headphone packages are welcome