Resonantia Frequentia: 2.731KHz Operans intentione: 1~3Vo-p Rated Voltage: 1.5 Vo-p Current Consummatio: 70mA Max.at Rated Voltage Sana Impetus Level: 80dB Min at Rated intentione ad 10cm Operating Temp: -40~+85°C Pondus: 1.2g Material habitationi: PPO