Main features:<br />- Support AUX input・ support U disk / TF card<br />- Colorful Hyun lights<br />- Support for Bluetooth calls<br />- 3.5mm audio interface input・ fully compatible with audio source output device・ mobile phone・ computer・ MP3・ MP4・ PSP・ etc<br /> <br />Specifications:<br />Material: ABS<br />Supported formats: TF card<br />(TF Card: support up to 8GB・U disk: support up to 8GB)<br />Audio input:Support mini USB audio input<br />Audio output: Support 3.5MM headphone output<br />Operating voltage: DC 3.7V-4.2V<br />Power: 4 3W<br />Frequency Response: 20Hz-20KHz<br />Size: 60 * 60 * 62mm<br />Net Weight: 155g(Approx)<br /><br />Package List:<br />1*Bluetooth small speakers<br />1*USB audio cable