1、Non Paper Diaphragm Material: Full range cavity small speaker shape is rectangular, diaphragm material is non paper, the magnetic circuit form of internal magnetism. 2、Sealed Tightly: Full frequency cavity small speaker is stable performance, sealed tightly, convenient and reliable, clear sound. 3、Rated Value: The full range cavity small speaker has a rated power of 1W, rated impedance of 8Ω, and an effective frequency range of 500‑10kHz. 4、Made of ABS Material: The full range cavity micro speaker is made of ABS material with excellent craftsmanship. 5、Wide Application: This cavity small speaker is suitable for robot, advertising machine, game machine, all in one special speaker, smart home. Item Type: Cavity Speaker Material: ABS Output Sound Pressure Levels: 94±3dB Impedance: 8Ω Rated Input Power: 1W Single Abnormal Sound Test: Frequency Range 300Hz-3.4KHz, Input 1.2V Minimum Resonant Frequency: 800±10%Hz Effective Frequency Width: 500-10kHz Storage Temperature: -20℃-75℃ Operating Temperature: -30℃-85℃ Vibration: 10-55Hz Amplitude: 1.5mm 4 x Micro Speaker