Material: ABS
Rated Power:2.0W                                                                                                       Frequency:100HZ-- 20KHZ                                                                                               SNR:≥85db                                                                                        
Distortion:≤0.5 %                                                                             
Working voltage/current:3.7-4.2V                                                                                                  Output:3.7V/250MA
Loudspeaker Output:2W/3Ω
Battery: Rechargeable Li-Battery
Confirm to bluetooth V3.0                                            
High quality audio A2DP V1.2          
stereo output        
Transmission distance: 10M        
Support line-in function                 
Small, convenient