Color: GrayFM
Radio Mode: Turn on the speaker, short press the "power on/off" button, it will be turned into FM mode. Then short press the "Pause/Play" button, it will start the automatic station search and play automatically once the searching is finished. Then short press the "+/-" buttons to change the FM sttions and long press to change the volume. In FM mode, short press the "power on/off" button again, you can go back BT mode.
Technical Specifications Operation Distance: Up to 33 Feet (10M) Built-in 3.7V 400mAh lithuym battery
Dustproof waterproof level: IPX7
Charge: Micro USB, Charging time 2-3hours
Item size: 3.5 x 3.2 x2inch
Item weight: 4.4 oz Easy to Carry to Everywhere You Want -You can hold it effortlessly in the palm of your hand due to the ultra small size. And small enough to even fit inside handbags and small backpacks. -The hook and suction cup design, allows you to put this wireless waterproof speaker on your backpack, bathroom or the side of laptop. Especially when you are hiking, climbing, travelling. It is a nice parter for various kinds of outdoor activities.