1. Material: ABS / UV2. Basic functions: music, FM, amplifier, mobile power3. Output power: 5W4. Input: power adapter/USB/lithium ion5. Sensitivity: 80db6. Distortion: 1% (3.7v, 1Khz, 1W)7. Working voltage: DC 3.7V8. Charging voltage: DC 5.0V9. Lithium battery capacity: 2200mAH10. Display mode: LED11. Speaker: 2.5 inches x 112. Audio format: MP3 / WMA / WAV13. Working temperature: -5~40 degrees Celsius14. Net weight: about 249 grams15. Dimensions: about 86x39x117 mmPacking list:1. Loudspeaker2. User Manual3. USB data cable4. Waistband5. Professional wired headset microphone

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