| DT-120 | Product performance | |
| Type | Armature speaker | |
| Size | 5.06mm*2.78mm*2.59mm | |
| Nominal/Max output | 1mW/3mW | |
| Speaker Impedance | 500Hz 185 ± 15%Ohm 1000hz 265 ± 15%Ohm | |
| SPL | 105 ± 3Db Sound check PA10 PS20 IEC711,1.0 kHz/0.346V。 At:10 mm(Tube size: inner 1mm，length: 10mm) | |
