Portable Audio HIFI Headphone Amplifier<br /><br />Model: XU09<br />Color: Black<br />Material: Steel<br />Input/Output Port: 3.5 mm Studio Input<br />Lithium Battery Capacity: 2000 mAh<br />Amp Using Time: ＞ 8 Hours<br />Amp Internal Voltage: 8.3V/1A<br />Output Power: 40Mw in impedance 16?<br />Adapted Headphone Impedance: 16~150?<br />SNR:＞100Db<br />THD+N: 0.0003%<br />Size(L*W*H): 97 x 60 x 15 mm<br /><br />Features:<br />1.USB charging.<br />2.Portable， powerful and easy to use.<br />3.The LED indicator light is red when the product is charged and it will turn green when the battery is full.<br /><br />Package Included:<br />1 x Headphone Amplifier<br />1 x USB Cable<br />1 x Audio Cable<br />1 x Manual<br /><br />Notes:<br />1.Manual measuring， please allow 1 ~ 5 mm error，thank you.<br />2.Due to the difference between different monitors， the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.Please understand， thank you!