XU09 Hi-Fi Headphone Amplifier Portable High Quality Sound

XU09 is a portable Hi-Fi headphone amplifier that features fashionable appearance big power and high quality voice output. Being able to be connected with PC mobile phone and other 3.5mm audio devices for improving sound quality.Features:Long-lasting 2000mAh internal lithium polymer battery lasts about 8 hours once being fully charged.Adopts aluminum-shielded case to prevent external interference noise from the audio device the wireless signals and other irrelevant noise.Able to drive various types of earphones. Compatible from 16 ohms (for low-impedance earbuds) to 150 ohms (for professional-quality high-impedance headphones).Fashionable mini appearance it is light portable and easy to carry anywhere.There is an LED indicator for power on battery charge and low battery indication and battery charging is done through the convenient micro USB port.How to use:Open the unit connect audio device to the AUX-IN port of unit using the 3.5mm audio cable (not included). Start playback on the connected audio device and connect your Hi-Fi headphones to the unit. Now relax yourself and enjoy the high quality sound.Specification:Model number: XU09Output power: 40Mw in impedance 16?Adapted headphone impedance: 16-150?THD+N: 0.0003 %S/N: ?100dBLithium battery capacity: 2000mAhPlayback time: about 8HInternal voltage: 8.3V 1ACharging time: ?2HColor: BlackItem size: 9.8 * 6.2 * 1.8cm / 3.85 * 2.44 * 0.70inItem weight: 120g / 4.23ozPackage size: 13.8 * 9.6 * 3.4cm / 5.43 * 3.78 * 1.33inPackage weight: 185g / 6.54ozPackage List:1 * Hi-Fi Headphone Amplifier1 * USB Cable1 * 3.5mm Audio Cable1 * English / Chinese User Manual