Speaker mode: Dimensions 15x5mm impedance 8 ± 15% Ω at 2000Hz rated power 0.5W maximum power 0.7W resonant frequency 900 ± 20% Hz output sound pressure 86 ± 3dB/0.1M 0.1W at 0.6,0.8,1.0,1.2,1.5 KHz Average Frequency Range Fo ~ 20KHz
Dimensions φ30 * 7mm impedance 8Ω ± 15% rated power 1W maximum power 1.5W resonant frequency 500Hz ± 20% output sound pressure 89dB ± 3 Frequency Range Fo ~ 20KHz
Dimensions φ16 * 14mm rated voltage 6VDC voltage 4 ~ 8VDC rated current ≤ 30mA output sound pressure ≥ 85dB generate frequency 2300 ± 300Hz Case Material PPO Weight 7g