FM radio/mp3 player waistband loudspeaker with reverberation of sound with headset ... display, also show bettery usageOuput power: 12 W, clear and nice loud voice, good penetration. Technique Data:Output power12WFrequency ... for Yoga, Gymnastics,Teaching,Promotion Activitives Conference,Acoustic Instruments,Camping and other outdoor Entertainment Accessories: Headset Microphone : 1 pcRecharger : ...