1.100% Brand new and high quality portable speakers
2.Material : Aluminum Case (not plastic.)
3. It can input by USB Memory stick or micro SD/TF Card
Stereo sound, Built - in Rechargeable Li-ion Battery.(Last time 3-5 hours)
4.FM Radio : Frequency : 88-108Mhz• Power out:2*3w                                                • Frenquency response:    80Hz~20KHz                                                                                               SNR:≥70dB                                                    • Distortion factor:≤0.1%                                   • Response sensitivity:700mA