FREE SPEEDY SHIPPING INCLUDED (12-20 Days in US)
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Sensitivity: 122±3dB
Frequency Response Range: 20-24000Hz
Volume Control: Yes
With Microphone: Yes
Active Noise-Cancellation: Yes
Color: Black / Red / Blue / Green
Distance transfer: 10M
Working Time: 3.5hours
Package Box: Yes,includes Retail package Box
