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built-in rationale: 500mAh
color options: White / yellow / red / Blue / Purple
The nominal impedance: 4 ohms
Rated power: 3W.
Rated voltage: DC 5V.
Frequency response: 80-20KHz.
SNR:≥ 85dB
The horn unit: 2 inches
transmission distance: 10M
product size: L45*W45*H65MM
weight: 260g
The description of packaging : box
The delivery period: 25 days