25W SHIDU Powerful Wired Promotion Voice Amplifier S28
| Parameters | |
| Model: S28 wired | Type: Original voice amplifier |
| Appearance craft：ABS+UV | Frequency response：90Hz~18KHz |
| LED Screen: LED color screen | Utility time: 5-7hours |
| size: 123mm*99mm*48mm | charging time：2.5hours |
| Product weight: 282g | SNR: ≥80db |
| Package weight: 656g | Battery capacity: 7.4V 2000mAh |
| Input: DC 5V 2A | Storage types: TF card USB |
| Output power: 25W | Audio format: MP3 |
| Bluetooth: 5.0 | Audio input: AUX |
| Bluetooth distance: 10m | Distortion: ≤10% |
| Color: Blue/Black | |
| Functional: Amplifier、Recording MP3 play、 Computer voice speaker、 Non-volatile memory、 25W Power | |
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