Acogedor Headphone Amplifier

HiFi Headphone Amplifier, 3.5mm AUX and USB Type C, Two Stage Gain Switch and Bass Boost, Compatible with Mobile Phones, Computers, MP3, MP4 How to Use: Take out the product and use it. Specification: Item Type: Headphone Amplifier Material: Aluminum Alloy Colour: Black Battery Model: Lithium Battery (Built In) Battery Capacity: 1000mAh Input/Output Port: 3.5mm Port Amp Use Time: About 6 Hours Load Resistance: 16-600Ω (Can Push the Resistance Range of Earphones) Distortion: 0.002% Signal to Noise Ratio: ≥120dB Power Output: 250mW in Amplifier Internal Voltage: ±4V Charging Voltage: DC 5V Frequency Response: 20Hz-20kHz (±3dB) Parameters: Compatible with a variety of digital devices with 3.5mm AUX output such as MP3, MP4, mobile phones, for PS4 controllers, etc. Type C input is compatible with mobile phones, computers, and laptops. The enhanced signal is input into the headphone amplifier circuit to make the headphones play the best performance. With bass switch, provide a more delicate and round bass performance, giving you a more shocking music experience. Package List: 1 x Headphone Amplifier 1 x 3.5mm Cable 1 x USB Power Supply Line 1 x Manual Note: Manual measurement has 1?2cm error.