1. Portable Bluetooth headset 2. Clean lines, no trace of redundancy, professional but not rigid, but not frivolous fashion. 3. Foldable design, easy to carry 4. Adjustable stretch headband 5. Function keys arranged in a reasonable operating fingertips 6. 40MM hi-fi unit using large-diameter, low-neat, bright and transparent high frequency. 7. Usually turn on Bluetooth mode, enjoy wireless music charm; as luck would run out of power, simply plug in the standard of high-quality audio cable, you can continue to enjoy high-fidelity music. If the link is not Bluetooth-enabled audio devices, they can switch to a wired mode via audio cable ways. Wearing styles: headset Driver unit: 40mm Frequency range: 20Hz-20KHz Sensitivity: 104 dB Resistance: 32 Cable length: 2.2m Microphone Microphone Dimensions: 6mmx5mm Microphone echo frequency: 1KHz Microphone Sensitivity: -38 3dB (0dB = 1V / Pa, 1KHz)
