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China Mini Speaker Manufacturer,Promotional Custom Imprinted Mini Speaker,Advertising Mini Speaker,discount Mini Speaker supplies |
Specifications: 1) Output: RMS 4W x 2 2) Impedance: 4Ω 3) S/N ratio: ≥75dB 4) Speaker unit: 2.5" x 2 5) Isolated rate: ≥45dB 6) Power supply: DC3 - 9V