Output power: RMS 1.5*2+5W
Signal to Noise: above 80 Db
Alt cell: speaker with 1 inch gamut high density prevent magnetism :
Undertone: speaker with 2 inch undertone rubber prevent magnetism

(Optional)build –in battery rechargeable high capacity battery
Work time for build in battery : 2-5 hours
Input port: input with 3.5 mm circuitry
Circuitry input impadance; 8ohm
Input pressure: 5V DC( positive outside and negative inside)
Power adapter:100—240 V AC
Size: 130*130*80 mm