1 . Operating voltage(max): 3.7 Vpp

2 . Average working voltage: 1.8 V

3 . Sound pressure level: 88dB @1kHz 

4 . Average working current:180mA

5 . Impedance: 8 ± 5 % Ohm

6 . Frequency: 100-5000Hz

7 . Rated input(W): 250 mW

8 . Max input(W): 800 mW

9 . Operation temperature: -20 to +60 deg

10 . Storage temperature: -30 to +70 deg

11 . Size: 10.9*8.5mm