| type | unit | hxd12060-a | hy12070-a | hxd12070-b | | rated voltage | v | 1.5 | 14.5 | 1.5 | | operating voltage | v | 1-3 | 1-3 | 1-3 | | *rated current(max) | ma | 70 | 70 | 30 | | *min sound output at 10 cm | db | 80 | 88 | 80 | | coil resistance | ω | 6.5±4 | 6.5±1 | 16±4 | | *resonant frequency | hz | 2048 | 2731 | 2048 | | operating temperature | ℃ | -20～+70 | | storage temperature | ℃ | -30～+80 | | housing material | | noryl | | weight | g | 2.0 |
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