| Type | Unit
| BJ-1
| BJ-2
| BJ-3
| | Rated Voltage(Square Wave) | V
| 12
| 24
| 220VAC
| | Operating Voltage | V
| 8-15
| 18-28
| 200-250
| | *Rated Current(MAX) | mA
| 97
| 110
| 105
| | *Min Sound Output at 10 cm | dB
| 110
| 110
| 110
| | *Resonant Frequency | Hz
| 2500±500
| 2500±500
| 2500±500
| | Operating Temperature | ℃
| -20~+70
| -20~+70
| -20~+70
| | Weight | g
| 50
| 50
| 61
|
|