X1B Specifiction:
Connector: 3.5mm
Frequency responses: 20Hz-20kHz
Impedance: 16Ω
Sensitivity: 108 ±5dB
Speaker: Φ10mm
Length: 1.2M
Cable Material: PVC
Color: Red, black
Feature: Call button & Volume control button
X1B Selling points:
1. Metal earlap
2. Good sound quality
3. High-end package
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