Aluminum Portable Headset Amplifier HiFi Audio Headphone Amplifier Sound Improver AMP 600mAh with 3.5mm Port

Aluminum Portable Headset Amplifier HiFi Audio Headphone Amplifier Sound Improver AMP 600mAh with 3.5mm Port Using aluminum alloy shell, feel comfortable, good heat dissipation. The appearance is small and atmospheric, easy to carry. There is an independent gain control switch. The operational amplifier is suitable for both and power supplies. With 3.5mm input and output interface, suitable for connection of various types of smartphone computer equipment. Built-in 600mAh rechargeable lithium battery, low power consumption, working time is about 8 hours. OverviewThis earphone phone amplifier is made of aluminum alloy casing, which is comfortable to handle and has good heat dissipation performance. The appearance is compact and easy to carry, with a 3.5mm input and output interface, suitable for connecting all kinds of smartphone computer equipment.Specifications:Input / Output Port: 3.5mm Studio inputLithium Battery Capacity: 600mAhAmplifier Usage Time: 8 hoursWorking Voltage: DC3.7-4.2VCharge Voltage: DC5VSNR: ≥116dbDistortion: 0.001%Output power: 32Ω 130mWLoad Impedance: 16-300ΩFrequency Range: 20Hz-20kHz(±3db)Item Size: 10*6.2*1.5cm / 3.94*2.44*0.59inPackage Size: 13*8*4cm / 5.12*3.15*1.57inPackage Weight: 132g / 4.66ozPackage List1 * Headset Amplifier1 * USB Power Cable1 * User ManualNotes: There is a battery inside the machine, please do not open it privately.Please do not use the machine at a high temperature and humidity environment.