40mm composite film speaker 4 ohm 2W bluetooth speaker . For portable audio speaker .
Product detailed parameters :
Size: outer diameter 40mm * High 5.7mm .
Impedance: 4 ohm ± 15% . (If need 8 ohm , please contact me , thanks .)
Power: 1.0W / 2W .
Frequency characteristics: Bass (low frequency) .
Resonance frequency: 350 ± 20% HZ .
Average sound pressure: 92 ± 3db 0.1w / 0.1m .
Frequency response range: 350 ~ 5000HZ .
Working temperature: -20 ~ 55 ℃ .
Storage temperature: -30 ~ 75 ℃ .
Package : 2 pcs.
