Specifications:
Model: LF-18
Battery: 260mAh Polymer battery
Mic: Anti‐interference microphones, ‐42DB
Play time: 8h
Standby time: 10days
Effective range: 10m (33feets)
Blue tooth Version: 4.1
Receiving Sensitivity: 88dBm
Impedance: 8Ω
Frequency range: 20‐20KHz
TF card: No
System language: English 
Color: black, white
Size: 134*136*52mm
Package size: 162*152*56mm 

Package included:
Bluetooth headset x1 
Adjustable headband x1 
USB cable x1

Notice:
1. Due to the light difference, the color may be slightly different.
2. Please allow slightly differences due to manual measurement.

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* This item should arrive in 2~3 weeks from the purchase date 
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