Mini speaker vibration Electro acoustic Advanced Technology Weight: 420g • Mini speaker vibration• Electro acoustic Advanced Technology• Generate 360 degree sound• 26 watts• Resignations: 50mm x 52mm• Impedance: 6Ω• Weight: 420g• Compatible with: Laptop, pc, mp3, mp4, md, cd, dvd players and cell phones. Vibration Speaker ELectro acoustic Advanced Technology