Bicycle loudspeaker "Soundrider": mono quality loudspeaker with FM-radio

Bicycle loudspeaker "Soundrider" : mono quality loudspeaker, FM-radio, line-in connection 3.5 mm plug, plays MP3 or WMA audio files, USB 2.0, integrated card reader for TF/micro SD cards, including earphones, integrated rechargeable battery, USB-battery c