... Multifunction all in one with Entertainment,Microphone, Amplifier, Loudspeaker,Music play and FM radioSupporting TF card or USB for music ... with 20 hoursWith digital display, also show bettery usageOuput power: 12 W, clear and nice loud voice, good ... working time Keep working in 7-8 hours Function Mp3, FM radio, Amplifier, loudspeaker, microphone, reverberationColor ChoiceBlack,Red, BlueWeight 225g ( ...