Ausla Headphone Amplifier - 600mAh 3.5mm

"Speculation: Item Type: Headphone Amplifier Material: aluminium alloy. Colour: black. Battery model: lithium battery (built-in) Battery capacity: 600 mAh Input/Output port: 3.5mm port Load resistance: 16-300Ω (can push the resistance range to the headphones) +N: 0.0003% Signal-to-noise ratio ≥100dB 【Parameters】Extensive compatibility: This amplifier is very compatible with various digital devices, such as MP3, MP4, tablet, music player, smart phone, computer, CD player and media player, controller, etc. Improve the signal input into the headphone amplifier circuit, so that the headphones can play the best performance. With Bass Switch, provide a more delicate and round bass performance, giving you a more impactful music experience. Packing List: 1 x Headphone Amplifier 1 x 3.5 mm cable 1 x USB Power Supply Line How to use: Take out the product and use it. Note: Manual measurement has an error of 1-2 cm. 1 x headphone amplifier. 1 x 3.5 mm cable 1 x USB Power Supply Line Manual measurement has an error of 1-2 cm.