Detailed Portable Speaker For MP3/4 Description:
1. Widely used for MP3/MP4 player, walkman, iPod and computer ; 2. Battery supply: R03/AAA/UM-4, 1.5V x 4pcs ; 3. External power: DC 6V, 250mA ; 4. Speaker impedance: 4 ohms ; 5. Output power: 1W x 2 ; 6. Total harmonic distortion: <= 0.5% ; 7. Frequency response: 50Hz-20kHz ; 8. Signal/noise: >=55dB
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