FiiO M3 8GB Micro-Portable Digital Music Player (Blue) FiiO M3 8GB Micro-Portable Digital Music Player - Open Earbuds - Micro USB Data/Charging Cable - Lanyard - FiiO 1 Year Warranty Standard 3.5mm headphone port drives 16-100 Ohm headphones Volume Control: 60 steps digital potentiometer, 5-band equalizer (6dB), channel balance 10dB adjustment 2.0", TFT screen with 240x320 pixels, 6 physical buttons with backlight 24-hour playback battery capacity, fully charges in less than 2.5 hours.