Photo 1 of SHIDU Bluetooth Voice Amplifier Speaker, Portable Waterproof Voice Amplifier with Microphone Headset Set 18W 4400mAh Rechargeable Microphone and Speaker Set for Teachers,Coaches,Outdoors Speech

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Photo 1 of SHIDU Bluetooth Voice Amplifier Speaker, Portable Waterproof Voice Amplifier with Microphone Headset Set 18W 4400mAh Rechargeable Microphone and Speaker Set for Teachers,Coaches,Outdoors Speech Photo 2 of SHIDU Bluetooth Voice Amplifier Speaker, Portable Waterproof Voice Amplifier with Microphone Headset Set 18W 4400mAh Rechargeable Microphone and Speaker Set for Teachers,Coaches,Outdoors Speech Photo 3 of SHIDU Bluetooth Voice Amplifier Speaker, Portable Waterproof Voice Amplifier with Microphone Headset Set 18W 4400mAh Rechargeable Microphone and Speaker Set for Teachers,Coaches,Outdoors Speech