Shenzhen Bongch Technology Co., Ltd.  

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Made in China with superior toneand translucent
Design; With rich Chinese characteristics; Various
Patterns are available.
Speaker and wire:
Speaker Diameter: φ 40mm
Speaker Resistance: 32Ω± 15%
Max. Input Powe: 20mv
Frequency: 20Hz-20KHz
Cable length: 2.0m
Sensitivity: 103± 3dB&1K Hz
Plug: 3.5mm
Wire material: OFC
Wire color: Black