40mmx6mm mini speaker 4/8/16/32/64/120 ohm 300hz 1W 4050 4005 hole mounting mylar cone waterproof speaker annunciator transducer & buzzer high quality alarm buzzer for household electrical appliances,computer,toy,telephone,cell phone,earphone,medical,meter and instrument - Changzhou Esuntech Co Ltd.

| Model No. | EST40N-D |
| Cone Material: | Mylay |
| Edge: | Paper |
| Nominal Power: | 2w |
| Maximum Power: | 3w |
| Impedance: | 4/8/16/32/64/120 ohm±15% |
| Fo: | 530hz |
| Response: | Fo-20kHz |
| S.P.L: | 91±3dB/W/M |
| Magnet : | NdFeB |
| Rohs | Yes |

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