... .0/1.1 )With USB recharge connectorPower supply: rechargeable with high capacity Lion battery, keep working with 20 hoursWith digital display, also ... , FM radio, Amplifier, loudspeaker, microphone, reverberationColor ChoiceBlack,Red, BlueWeight225g ( including battery )Size125*87.5*51.5mmApplication:Used for Yoga, Gymnastics,Teaching ...