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cestmall f10 portable compact mini speaker, four times of the normal volume, 3.5mm audio input, for iphone android tablet nevigation psp mp3 mp4 black

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cestmall f10 portable compact mini speaker, four times of the normal volume, 3.5mm audio input, for iphone android tablet nevigation psp mp3 mp4 black

specifications: 1. s/n: >90db 2. net weight: 42g 3. output power: 2w 4. material: plastic/silicon 5. playing time: about 8 hours 6. frequency range:20hz -20khz 7. charging time: about 45 minutes 8. product size: 42.5w*58h*31.5d mm 9. loudspeaker...