| No. | Item | Unit | Specification | Condition | |
| 1 | Oscillation Frequency | Hz | 2731 | Vo-p=1/2duty , square wave | |
| 2 | Operating Voltage | Vo-p | 2 ~ 4 | 3 ~ 7 |  |
| 3 | Rated Voltage | Vo-p | 3 | 5 | |
| 4 | Current Consumption | mA | MAX.80 | MAX.60 | at Rated Voltage |
| 5 | Sound Pressure Level | dB | MIN. 82 | MIN. 85 | at 10cm at Rated Voltage |
| 6 | Coil Resistance (Ω) | 16±3 | 45±5 | ||
| 7 | Weight (MAX) | gram | 0.8 | ||
| 8 | Housing Material | PBT ( Black ) | |||
Unit :mm Tol: ±0.5
