Soundbox with built-in MP3 player and FM radio Superior sound quality Supports MP3 Playback from USB-Sticks and Micro-SD cards 3.5 mm Audio input (AUX / Line-in) FM radio antenna via 3.5 mm audio cable Radio frequency range: 87.5 108.0 MHz Aluminum housing Built-in lithium battery, 600 mAh Power supply either via battery, USB or PSU Compact size, ideal for travelling