Description: Mini USB portable FM radio compact stereo travel speaker music player. MP3 Music Player TF Card / USB Disk; a standard 3.5mm jack for earphones if necessary, easy to plug in your iPod, Smartphone, tablet, laptop and other MP3 player or any audio source that uses a standard 3.5 mm jack. FM Radio Frequency from 88.0MHz to 108.0MHz,you can choose to your favorite channel with clear FM signal. The children lock function makes it safer for children to play. Built-In power amplifier with excellent sound quality. Emergency Flashlight Function is very handy for you whenever you need a light. Specification: Material: ABS+UV Output power: 3W Input Power: Power Adapter/USB/ Li-ion Sensitivity: 83db Working Voltage: DC 3.7V Charging voltage: DC 5.0V---500mA Size Chart: 123mmx32mmx67mm/4.84inchx1.26inchx2.64inch Package Includes: 1 Piece Radio speaker 1 Piece User manual Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!