A deadly little piece of kit i purchased this for runningthe radio has good tuning pickupi do my running in a mountainous area with no station dropoutthe tf mode is my most used functioni downloaded 60 songs to run to and whack up the volume and just go for iti havent used the blue tooth function so on that i cannot commentnow the volume is great and a couple of mates who watched me using it were blown away at the sound qualityfor such a simple and relatively inexpensive unitthe battery unit lasts hours at high volumesi think this unit is the dogs whatsits and would definitely recommend them excellent product as advertised better than i expected for the price my kid is fascinated