16-300Ω HIFI Headphone Amplifier Portable Earphone AMP 3.5mm w/ Audio USB Cable 🔊【HiFi Headphone Amplifier】It supports most headphones of high impedance 16-300Ω, 3.5mm AUX Input and Output, signal-to-noise ratio> 120Db, THD + N = 0.0004%, fully filter noise, enjoy high-quality audio. 🔊【Two-stage Gain Switch】This Headphone Amp enhances the signal input into the amp circuit for the optimal performance of the headphones. Make it Possibility to output not only louder sound but a sharper and more Real stereo sound without distortion. 🔊【Rechargeable Lithium Battery】It adopts a rechargeable lithium battery with 1000mAH capacity, which allows the headphone amp to stay working more than 12-15h. Plus, there is a volume control knob for volume adjustment. 🔊【Portable and Lightweight 】This headphone amp is designed to enhance your music listening experience wherever life takes you; A sleek, sturdy shell and chassis allow for a durable use. 🔊【Broad Compatibility】-This amplifier is remarkably compatible with a variety of digital devices, such as MP3, MP4, iPhone, iPod, iPad, Computer, CD players and personal media players,Xbox one,PS4,PS5 Controller etc. Specifications: Color：Black Material: MetalMaximum Power Output: 350mW 32ΩloadLoad Impedance: 16-300ΩWorking Voltage: DC3.7-4.2VCharging Voltage: DC5VFrequency Response: 20Hz-20kHz(±3dB)Battery Capacity: 1000mAh (3,7V) Lithium-BatteryAmp Using Time: More Than 8 HoursDistortion: 0.004%SNR: ≥120dBDimension(L*W*H): 9.5*6.1*1.5cm/3.74*2.4*0.6in Easy Installation Two-stage gain switchHigh/Low gain switch for optimal performance of the headphones.It enhances the signal input into the amp circuit for the optimal performance of the headphones.Make it possible output not only louder sound but a sharper and more Real stereo sound without distortion. Rechargeable lithium batteryBuilt-in Rechargeable Battery, Charge by USB C Cable, More Convenient to charge.It is not recommended to use while charging because current disturbance will occur when charging. Convenient to carry3.5mm Audio HiFi Earphone Headphone Amplifier with volume control. HiFi Amplifier It supports most headphones of high impedance 16-300Ω, 3.5mm AUX Input and Output, signal-to-noise ratio> 120Db, THD + N = 0.0004%, fully filter noise, enjoy high-quality audio. Two-stage Gain SwitchThis Headphone Amp enhances the signal input into the amp circuit for the optimal performance of the headphones. Make it Possibility to output not only louder sound but a sharper and more Real stereo sound without distortion. Rechargeable BatteryIt adopts a rechargeable lithium battery with 1000mAH capacity, which allows the headphone amp to stay working more than 12-15h. Plus, there is a volume control knob for volume adjustment. Portable & LightweightThis headphone amp is designed to enhance your music listening experience wherever life takes you; A sleek, sturdy shell and chassis allow for a durable use. Package includes: 1 x 16-300Ω HIFI Headphone Amplifier Portable Earphone AMP 3.5mm w/ Audio USB CableShipping Information: Your item Ships Same Day to 1 Business Day from our California Location.