Portable Red MP3 Radio Speaker C-803. Support Two 18650 Battery.

Very handy universal radio with antenna.
Can be powered by one 18650 battery or two at the same time.

00:00 Unboxing portable red mp3 radio speaker c-803
01:28 Retractable radio antenna
02:21 Radio support two 186 50 battery
04:09 Testing the radio with a charger
06:27 Testing the radio with a zayadzhny device

Notes:the USB cable is just used for charge,it can't work if there is no battery
Function:
FM radio \TF card play \USB disk play \LED flashlight
Parameter:
FM frequency:87.5MHz~108MHz
Rated power: 3w
Frequency response: 20Hz~20KHz
MP3 bit rate: 8K bps~320K bps
Distortion: +\-0.55%
SNR: 85db
Size:120x25x60mm
Voltage:5V\1000mA
Battery: Support two 18650 battery

It can work with one battery or two batteries, and it can last longer time with two battery, please consider how many batteries do you want.
1. How to charge: connect the USB cable to a phone charger or computer and then it will get charged;
2. How to use the FM radio: switch to the FM mode and long press the play key, it will search the radio station and save it automatically, only the first time you need to search the radio station, it can save 50 radio station and you can select them by the number key.
3. How to play music in the sd card or usb disk: insert a sd card or a usb disk and it will play it automatically, this device can insert two sd card, long press the "next" and "prev" key to fast forward / fast reverse
A batter bass sound performance with the bass diaphragm design

Ask your questions in the comments
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