Customers wanting more powerful audio audio from their mobile devices might be interested in the NuForce Mobile Music Pump-- a portable headphone amplifier the company claims adjusts gain by either 3X or 5X.
It uses a standard 3.5mm jack for input and output and provides max audio output of up to 94mW (32 ohm, 1.74V) or 49.2mW (100 ohm, 2.2V), with frequency response of 20–20kHz +/- 1.5 dB.
The device is compatible with both over- and in-ear headphones, with a 200mAh battery providing up to 8 hours of audio amplification.
