Original Jcam HF-S339 Wireless Bluetooth Speaker Portable Sound Jet

Product Details: Wireless Speaker. Features. High capacity rechargeable lithium battery. Supports various audio inputs: Memory Card, Usb. With main volume control. SPECIFICATIONS. Power Output: 5W. Battery Capacity: 500mAH. Speaker Size: 3 inch, 2ohm. Play Time: Up to 4 hours. DC5V: Charging jack, you can use the dedicated adapter to charge. TF CARD: Insert the TF card to play MP3 music. MIC: Use the cable with we 3.5mm plug to connect the Mic slot, USB: Insert U disk to play MP3 music. ON-OFF: ON-OFF. V-Short press for previous song, long press to turn down the volume. Short press to play/pause. At Radio mode, Short press to start automatic search. Short press for next song, long press to turn up the volume. Mode: Short press to change function mode