About using the Play/Pause button, you can short press the button to play and pause and long press to TF and LINE mode.
About the NEXT/V+ button, at the TF mode, short press to next, long press to volume up at LINE mode, long press to volume up.
About the PREV/V- button, at TF mode, short press to previous, long press to volume down, At LINE mode, long press to volume down.
About the lights, when you are charging it, the light will becom red, and if you are playing with it, the light will turn blue.
★Brand new and high quality.
★Compact angry birds design, elegant appearance, high performance.
★Plug and play, no driver required
★Powered by Lithium battery (included), can be charged via USB cable
★Compatible with computers, notebooks, MP3, MP4, iPod, iPhone and any other devices with 3.5mm audio jack.
★With TF card slot and USB port, support TF card, USB Flash Drive
★High frequency sound clear and transparent, full-range stereo sound.
★Mini body, very easy to carry, suits for traveling
★The product comes with a 3.5mm audio cable and a USB charging cable (2 in 1)
*DK-57 Digital Mini Speaker
*Plays mp3 format music from your TF card automatically
*External 3.7V 800mA Li-lon battery
*Power output: RMS 2W*2
*Accessory: 3.5mm audio&mini USB cable
Pictures of this product
1* DK-57 FM/Card reader speaker