HW HAOWORKS 18W Wireless Bluetooth Waterproof Voice Amplifier Portable Headset Microphone with Speaker Small Personal Microphone for Teachers, Outdoors

* POWERFUL Microphone and Speaker: The portable voice amplifier comes with a WIRELESS headset microphone. UHF wireless transmission technology, 20m/65ft stable wireless connection at open area. The uhf wireless voice amplifier gives you complete freedom to walk around the room. Super 18W output, Sound covers 10000 sq.ft (1000 ㎡), Allows you to project your voice across a group of 20 to 65 people clearly and loudly. Ideal for MEDIUM-SIZED or SMALL room use. * RECHARGEABLE Headset Speaker: The personal voice amplifier which built-in lithium-ion battery (4400mAh ) lasts a long time (8-12 hours); but wireless headset microphone lasts only 2-4 hours. f you need to use the item for a long time, we suggest you choose the wired version. Or you can buy an extra wired microphone or a 3.5mm lapel mic to go with it. * ALL-IN-ONE Voice Amplifier, Bluetooth Pa Speaker, Mobile Power: 1. You can easy stream the music from your Bluetooth-enabled devices like Phone, Tablet via Bluetooth and Non-Bluetooth device via Aux inpu...