SHIDU M400 Wired Voice Amplifier portable for tour guid
| Parameters | |
| Model: M400 | Frequency Response: 90Hz-18KHz |
| Product size: 114*84*46MM | Play time: 4~6 Hours（moderate volume） |
| Weight: 271.6g | Color: Blue/Rose Red/Black |
| Charging Voltage: DC 5V | Battery Capacity: 3.7V 1500mAh Lithium Battery |
| Working Temperature: -10~45℃ | Case Material: ABS+UV |
| Bluetooth Version: 5.0 | Audio Format: Support MP3 |
| Power Output: 5W | Speaker Size: 2Ω 5W Single Voice Coil |
| Interface Function : TF Card/USB/MIC/AUX | Antenna: Telescopic Antenna |
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