*High-quality Portable Bluetooth speaker                                    
*Compact design curves round                                                        
*Support TF card , Bluetooth , FM radio function                                                        
*Hand threading design , and backpack suspension design          
*Suitable for outdoor , recreation , tourism , mountaineering , car                                                                
*Support Bluetooth MIC calls                                                               
*Built-in lithium battery  , support 4-6 hours of music playback        
*Built- in stereo speakers    

Power output : 3W*1 (RMS)           
FR :   90Hz~20KHz                    
S/N Ratio :  ≥90dB                 
Impendence :  4Ω*1            
Power : DC5V