Donner EM2

High Power - High power of headphone amplifier suited for high impedance professional headphone, make sure there is enough volume in noisy surroundings. (Don't support microphone).. Professional In-ear Monitor - The Ear Monitor Amp has Outstanding technical, sonic characteristics, high audio reproduction and no audio rendering for professional personal in-ear monitor.. Practical Interface - This Headphone amp has XLR and TRS input connector with locking mechanism, Stereo/mono source switch depending on cable connection. Two independent headphone output，can be used simultaneously with two pairs of headphone. Mono/Stereo switch to adjust the image according to different input signals.Mix adjusts the level ratio of two balanced input.. Strong Endurance - Runs up to 12-hour long life Li-ion battery.Power and battery charging control with Led indicators. Easy to Carry - Solid metallic belt-pack clip,High-tech, compact and portable designs for taking everywhere