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