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JD-ET4
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- characteristic： 1.High quality acoustic tube provides clear audio well.
2.Transparent coil tube much suitable for security people.
3.No-limited for right/left ear, available for any size of ear.
Applicable to noisy environment, such as security: Secret Service and preservation ... etc
- speaker • Diameter：15 mm
• Output Level： 101dB
• Input Power：0.1 W
• Max. Input Power：0.2 W
• Output Impedance：32 ohm @ 1200Hz
