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MP3 Player Portable Speaker MR-8113
1. This flat - thin mini speaker can be connected with mp3, mp4, Ipod (by 3.5 stereo).
2. Output by 3.5 stereo and USB
3. Power by : ac 220v/dc 6v (50hz-60hz).USB charge, or no.7 battery x 4
4. Speaker unit: 50mm*2
5. Out power: 2.5w*2
6. Frequency response: 100hz - 20khz
7. Impedance: 4 Ω
8. Sensitivity: 89db