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Amazon.com: Monster Rockin' Roller 4MAX | 100W Indoor/Outdoor Portable Bluetooth Speaker, Water Resistant | Up to 25 Hours Playtime, Karaoke Microphone, Telescoping Handle, Wheels, FM Radio, & USB Charging : Electronics
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Amazon.com: Monster Rockin' Roller 270 Portable Indoor/Outdoor Wireless Speaker - Gray/Black : Electronics
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Amazon.com: Monster Rockin' Roller 270 Portable Indoor/Outdoor Wireless Speaker, 200 Watts, Up to 100 Hours Playtime, IPX4 Water Resistant, Qi Charger, Connect to Another TWS Speaker (Slate) : Electronics
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