... wood, glass, floor, and metal play euphonious musical notes. Experiment with various materials around you, which play different music quality, and ... music 2.Output Power:3W3.Frenquency Response:80Hz-18KHz4.Source:PC,MP3,MP4,MD,CD, DVD player, Mobile phone,etc5. ... /6.0 kg Vibration Speaker, Wonderful and fashionable,With battery,support TF card. mini vibration speaker with TF card and FM,sound box