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 microphoneSpecification: Package Weight One Package Weight 0.37kgs / 0.81lb One Package Size 13cm * 10cm * 5cm / 5.12inch * 3.94inch * 1.97inch Qty per Carton 40 Carton Weight 17.50kgs / 38.58lb Carton Size 52cm * 42cm * 27cm / 20.47inch * 16.54inch * 10.63inch Loading Container 20GP: 452 cartons * 40 pcs = 18080 pcs 40HQ: 1049 cartons * 40 pcs = 41960 pcs