USB port
                                    
                                        Type A
                                    
                                
                            
                                
                                    
                                    USB rating
                                    
                                        5V DC/ 0.5A
                                    
                                
                            
                                
                                    
                                    Supporting file format
                                    
                                        mp3, wav
                                    
                                
                            
                                
                                    
                                    MP3 Codec
                                    
                                        MPEG 1 Layer 2/3, MPEG 2 Layer 3, MPEG 2.5 Layer 3
                                    
                                
                            
                                
                                    
                                    MP3 sampling rate
                                    
                                        16KHz - 48 KHz
                                    
                                
                            
                                
                                    
                                    MP3 bitrate
                                    
                                        80kbps - 320kbps
                                    
                                
                            
                                
                                    
                                    WAV sample rate
                                    
                                        16KHz - 48 KHz
                                    
                                
                            
                                
                                    
                                    WAV bitrate
                                    
                                        Up to 3000kbps
                                    
                                
                            
                                
                                    
                                    Bluetooth version
                                    
                                        4.2
                                    
                                
                            
                                
                                    
                                    Bluetooth profile
                                    
                                        A2DP V1.3, AVRCP V1.5
                                    
                                
                            
                                
                                    
                                    Bluetooth frequency range
                                    
                                        2402MHz-2480MHz
                                    
                                
                            
                                
                                    
                                    Bluetooth Max. transmitting power
                                    
                                        <10dBm  (EIRP)
                                    
                                
                            
                                
                                    
                                    Modulation Type
                                    
                                        GFSK, π/4 DQPSK, 8DPSK
                                    
                                
                            
                                
                                    
                                    5G Wireless frequency range
                                    
                                        5736.35 - 5820.35MHz
                                    
                                
                            
                                
                                    
                                    5G Max. transmitting power
                                    
                                        <9dBm (EIRP)
                                    
                                
                            
                                
                                    
                                    Modulation Type
                                    
                                        π/4 DQPSK