OUNA Headset Amplifier - 600mAh 3.5mm Aluminum

Overview This 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 input Lithium Battery Capacity: 600mAh Amplifier Usage Time: 8 hours Working Voltage: DC3.7-4.2V Charge Voltage: DC5V SNR: ≥116db Distortion: 0.001% Output power: 32Ω 130mW Load Impedance: 16-300Ω Frequency Range: 20Hz-20kHz(±3db) Item Size: 10*6.2*1.5cm / 3.94*2.44*0.59in Package Size: 13*8*4cm / 5.12*3.15*1.57in Package Weight: 132g / 4.66oz Package List 1 * Headset Amplifier 1 * USB Power Cable 1 * User Manual Notes: 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.