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Amazon.com: Monster Rockin' Roller Mini | Portable Bluetooth Wireless Speaker, 60 Watts, up to 36 Hours Playtime, Mic/Guitar Input, IPX4 Water Resistant : Electronics
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Amazon.com: Monster Rockin' Roller 270 - Altavoz inalámbrico portátil para interiores y exteriores, 200 watts, hasta 100 horas de reproducción, resistente al agua IPX4, cargador Qi, se puede conectar a otro altavoz TWS : Electrónica
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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) - Newegg.com
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