5PCS 2W 8 Ohm 40mm Mini Ultra-thin Horn Speaker Loudspeaker for Arduino DIY
Typical Frequence Response Curve : The swept sine-wave frequency response of a loudspeaker should ideally not deviate more. High temp. test: After being placed in a chamber at +55℃ for 96 hours. test: After being placed in a chamber at –20℃ for 96 hours.