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Feature
Small dimension, powerful, wide frequency, Louder sound at long distance
For Alarm system, White goods, Automotive, Elevator, UPS, Cellphone application
| Model No. | Procuct Samples | Impedance | Power Rating | Power Consumption | Fo | SPL | Frequency | Dimensions | Waterproof Rate | | | | |
| | (Ω+/-15%) | Normal(mw) | Max.(mw) | (Hz+/-20%) | (+/-3db) | (Hz) | (mm) | | | | | |
| OBO-10032F-05 |  | 32 | 10 | 20 | 700 | 98 | 400 ~ 6000 | 10.0 * 3.3 | | | | | |
| OBO-13008F-0603 |  | 8 | 300 | 500 | 1050 | 88 | 700 ~ 7000 | 13.0 * 2.75 | | | | | |
| OBO-15008S-02 |  | 8 | 500 | 1000 | 850 | 88 | 850 ~ 20000 | 15.0 * 15.0 * 4.0 | | | | | |
| OBO-15032F-02 |  | 32 | 30 | 50 | 680 | 103 | 680 ~ 20000 | 15.0 * 4.2 | | | | | |
| OBO-20008F-01 |  | 8 | 200 | 400 | 700 | 75 | 400 ~ 6500 | 20.0 * 3.0 | | | | | |
| OBO-23008F-01 |  | 8 | 200 | 500 | 750 | 82 | 550 ~ 6000 | 23.0 * 3.7 | | | | | |
| OBO-23032F-01 |  | 32 | 200 | 500 | 850 | 82 | 450 ~ 6500 | 23.0 * 3.7 | | | | | |
| OBO-23032F-0301 |  | 32 | 200 | 500 | 780 | 81 | 500 ~ 5000 | 23.0 * 4.2 | IP 67 | | | | |
| OBO-25008K-01 |  | 8 | 1000 | 2000 | 800 | 81 | 800 ~ 20000 | 25.0 * 14.0 * 4.5 | | | | | |
| OBO-27032G-01 |  | 32 | 200 | 500 | 680 | 80 | 400 ~ 7000 | 26.6 * 5.3 | | | | | |
| OBO-28004F-01 |  | 4 | 1000 | 1500 | 600 | 84 | 350 ~ 8000 | 28.0 * 5.0 | | | | | |
| OBO-28008F-01 |  | 8 | 200 | 500 | 650 | 81 | 350 ~ 6500 | 28.0 * 5.0 | | | | | |
| OBO-28008F-65 |  | 8 | 1500 | 2000 | 500 | 95 | 500 ~ 20000 | 28.0 * 5.1 | | | | | |
| OBO-28008F-71 |  | 8 | 1000 | 2000 | 550 | 97 | 550 ~ 20000 | 28.0 * 5.0 | | | | | |
| OBO-28008G-02 |  | 8 | 500 | 800 | 600 | 80 | 340 ~ 10000 | 28.0 * 4.0 | | | | | |
| OBO-30150F-01 |  | 150 | 500 | 1000 | 400 | 78 | 400 ~ 20000 | 30.0 * 5.3 | | | | | |
| OBO-32016F-01 |  | 16 | 250 | 500 | 600 | 96 | 600 ~ 6000 | 32.0 * 5.0 | | | | | |
| OBO-35004K-01 |  | 4 | 1000 | 2000 | 600 | 81 | 600 ~ 20000 | 35.0 * 16.0 * 5.0 | | | | | |
| OBO-35008G-01 |  | 8 | 1000 | 1500 | 720 | 96 | 720 ~ 10000 | 35.5 * 20.5 * 8.1 | | | | | |
| OBO-35008K-01 |  | 8 | 1000 | 2000 | 600 | 81 | 450 ~ 20000 | 35.0 * 16.0 * 5.0 | | | | | |
| OBO-36004F-01 |  | 4 | 500 | 1000 | 600 | 85 | 350 ~ 7000 | 36.0 * 4.8 | | | | | |
| OBO-36008F-02 |  | 8 | 200 | 500 | 550 | 81 | 350 ~ 6000 | 36.0 * 4.8 | | | | | |
| OBO-36008F-03 |  | 8 | 500 | 1000 | 530 | 86 | 350 ~ 6800 | 36.0 * 4.8 | | | | | |
| OBO-36008F-10 |  | 8 | 1000 | 2000 | 640 | 89 | 380 ~ 5600 | 36.0 * 4.8 | | | | | |
| OBO-36008G-05 |  | 8 | 1000 | 2000 | 600 | 79 | 600 ~ 20000 | 36.0 * 6.0 | | | | | |
| OBO-36016F-02 |  | 16 | 500 | 1000 | 530 | 85 | 350 ~ 11000 | 36.0 * 4.8 | | | | | |
| OBO-36025F-01 |  | 25 | 200 | 500 | 500 | 81 | 320 ~ 7200 | 36.0 * 4.8 | | | | | |
| OBO-36032F-01 |  | 32 | 100 | 200 | 400 | 80 | 300 ~ 5000 | 36.0 * 4.8 | | | | | |
| OBO-36100F-03 |  | 100 | 200 | 500 | 500 | 81 | 380 ~ 6500 | 36.0 * 4.8 | | | | | |
| OBO-40008F-01 |  | 8 | 200 | 500 | 500 | 80 | 400 ~ 12000 | 40.0 * 5.0 | | | | | |
| OBO-40008F-03 |  | 8 | 500 | 1000 | 550 | 82 | 350 ~ 5800 | 40.0 * 5.1 | | | | | |
| OBO-40008F-04 |  | 8 | 1000 | 2000 | 550 | 87 | 350 ~5000 | 40.0 * 5.0 | | | | | |
| OBO-40008F-22 |  | 8 | 1000 | 2000 | 650 | 89 | 350 ~ 4500 | 40.0 * 5.0 | IP 67 | | | | |
| OBO-40008F-2502 |  | 8 | 500 | 1000 | 480 | 118 | 480 ~ 12000 | 40.0 * 5.0 | IP 67 | | | | |
| OBO-40008F-51 |  | 8 | 2000 | 2500 | 650 | 98 | 650 ~ 20000 | 40 * 20 * 5.7 | | | | | |
| OBO-40008K-09 |  | 8 | 1000 | 2000 | 550 | 80 | 300 ~ 20000 | 40.0 * 20.0 * 5.7 | | | | | |
| OBO-40016F-05 |  | 16 | 500 | 1000 | 500 | 86 | 350 ~ 5000 | 40.0 * 5.0 | IP 67 | | | | |
| OBO-40016F-12 |  | 16 | 500 | 1000 | 500 | 86 | 350 ~ 8000 | 40.0 * 5.0 | IP 67 | | | | |
| OBO-40032F-01 |  | 32 | 200 | 500 | 560 | 80 | 320 ~ 6500 | 40.0 * 5.0 | | | | | |
| OBO-40032F-08 |  | 32 | 500 | 1000 | 800 | 87 | 500 ~ 10000 | 40.0 * 5.0 | | | | | |
| OBO-40032G-17 |  | 32 | 20 | 50 | 130 | 116 | 20 ~ 8000 | 40.0 * 9.2 | | | | | |
| OBO-40050F-01 |  | 50 | 200 | 500 | 530 | 80 | 320 ~ 6000 | 40.0 * 5.0 | | | | | |
| OBO-40150F-01 |  | 150 | 200 | 500 | 500 | 82 | 350 ~ 6000 | 40.0 * 5.0 | | | | | |
| OBO-40204F-01 |  | 4 | 5000 | 8000 | 1000 | 84 | 300 ~ 12000 | 42.0 * 23.0 | Speaker | | | | |
| | | 27Vp-p | | 4000 | 85 | | | Buzzer | | | | |
| OBO-45008F-19 |  | 8 | 1000 | 1500 | 550 | 99 | 550 ~ 10000 | 40.0 * 6.6 | | | | | |
| OBO-45008F-20 |  | 8 | 2000 | 2500 | 400 | 94 | 400 ~ 10000 | 45.0 * 6.6 | | | | | |
| OBO-50004F-01 |  | 4 | 1500 | 2000 | 550 | 88 | 350 ~ 20000 | 50.0 * 7.5 | | | | | |
| OBO-50008F-01 |  | 8 | 250 | 500 | 500 | 82 | 350 ~ 8500 | 50.0 * 7.5 | | | | | |
| OBO-50008G-01 |  | 8 | 200 | 500 | 400 | 82 | 280 ~ 11000 | 50.0 * 8.1 | | | | | |
| OBO-50008P-31 |  | 8 | 2000 | 2500 | 600 | 88 | 400 ~ 5000 | 50.0 * 11.6 | IP 67 | | | | |
| OBO-50050F-05 |  | 50 | 200 | 500 | 500 | 97 | 500 ~ 10000 | 50.0 * 8.1 | | | | | |
| OBO-50050G-01 |  | 50 | 200 | 500 | 400 | 81 | 250 ~ 11,000 | 50.0 * 8.1 | | | | | |
| OBO-57008F-01 |  | 8 | 500 | 1000 | 500 | 88 | 350 ~ 13,000 | 57.0 * 8.4 | | | | | |
| OBO-57032F-01 |  | 32 | 500 | 1000 | 500 | 86 | 500 ~ 20000 | 57.0 * 8.4 | | | | | |
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