YOCEWECA Voice Amplifier with Wired Microphone Headset 18W Waterproof IPX5 Voice Loudspeaker 4400mAh Rechargeable Portable PA System Power Bank for Outdoors, Water Aerobics Teaching, Meeting, Training, etc

* 18W Powerful Sound, Long Working Time: The waterproof voice amplifier comes with a wired microphone. 18W super output makes sound cover 10000 sq.ft(1000 ㎡), the voice amp can amplify your voice clearly and loudly across a group of 20 to 300 people. Rechargeable voice speaker built-in a 4400mAh durable lithium battery, provide a working time up to 12hrs after fully charged and only takes 3-5hrs to fully charged. * Waterproof IPX5, Sturdy and Sporty Design: Silicone cases and interface injection molding process makes the portable voice amplifier with the function of waterproof, shockproof and dust-proof. Perfect for indoor and outdoors, like the water aerobics, swimming teaching, parties, beach, poolside, and so on. (NOTED: The Wired headset microphone is NOT a Bluetooth Mic and also not waterproof.) * Multi-functional voice amplifier: All in one loudspeaker supports Bluetooth, Recording, Aux input, TF card, USB, etc. You can play music easy from your Bluetooth-enabled devices, like Smartphone, Tablet via ...