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Personalized Custom Soundwave Copper Vacuum Audio Bottle 22oz, Daddy Gift, Gift for Him, Fathers day gift With this custom 2-in-1 personalized steel bottle and speaker, you can stay hydrated while enjoying your favorite tunes. The screw-on lid features an ipx6 water-resistant Bluetooth speaker with 4h of operating time,33ft working range,and lcd lights. The double-wall stainless steel construction along with the copper inner well-kept your drinks warm all day long. The double-wall stainless steel construction along with the copper inner wall, keep your drinks warm for 12h and cold for 48h. .: Screw-on lid with a built-in Bluetooth speaker .: Bluetooth range of 10 meters (33 feet) .: Double-wall stainless steel construction .: IPX6 Water Resistant .: 22oz (0.65 l) .: BPA free