Input parameters: Input port: 6.35mm; 3.5mm two, impedance: 100kQ, input level: +15dBu, power supply: type c 5V1A
Output parameters: Output port: 6.35mm4, impedance: approx.80kQ, output level: approx.40mWin100Ω
Package Includes: 
1 * Headphone amplifier
Note:
1.Please allow subtle error due to manual measurement. pls make sure you do not mind before you bid.
2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.
Thank you!