| 品牌 | 天宏 | 型號 | 12d |
| 種類 | 蜂鳴器(片) | 驅(qū)動(dòng)方式 | 電磁式 |
| 是否有源 | 有源 | 材質(zhì) | abs |
| 規(guī)格尺寸 | 12*7.5（mm） | 聲道數(shù) | 單聲道 |
| rated voltage(vo-p) | 5 | 12 |
| operating voltage(vo-p) | 3～7 | 7～15 |
| *rated current (ma) | ≤30 | ≤30 |
| *sound output at 10cm(db) | ≥82 | ≥85 |
| resonant frequency (hz) | 2700±300 | 2700 ±300 |
| tone | continuous | continuous |
| operating temperature(℃) | -20～+70 | -20～+70 |
| storage temperature(℃) | -30～+80 | -30～+80 |
| *value applying rated voltage | ||