LiNKFOR HiFi Headphone Amplifier Built-in Power Bank Function
                                                $31.50
                    
                    
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                            Specification: Maximum power output 125mW 16Ω Load impedance 16-300Ω Working voltage DC3.7-4.2V Charging voltage DC5V Frequency response 20Hz-20kHz(±3dB) Battery capacity 3000mAh (3,7V) Lithium-Battery Amp Using Time More Than 15 Hours Distortion 0.004% SNR ≥120dB Dimension(L*W*H) 103*54*13mm Net weight 113g
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