Suggested Retail: $26.99. PURERINA Bone Conduction Headphones Open Ear Headphones Bluetooth 5.0 Sports Wireless Earphones with Built-in Mic - Adult range PURERINA bone conduction headphones with a long battery life of up to 6 hours continuous music and calls. Built-in 230mAh lithium battery provides a standby time of up to 240 hours. The headphones are IP55 certified, making them dust and water resistant. They are perfect for outdoor and indoor sports like running, cycling, hiking, and working. They are light and comfortable, weighing only 30 grams, making them suitable for long-term use. The open-ear design allows you to enjoy music without missing the sound of your surroundings. Brand: PURERINA -- LOT STICKER: TCE-BOX-BOXTCEA0080-ITEM-f3b61bdf___LPNPMCW8878274 -- SIZES ARE ESTIMATED. 7 CALENDAR DAY FULL REFUND GUARANTEE (FROM PRIMARY PICKUP DATE) ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 CALENDAR DAY STORAGE (FROM PRIMARY PICKUP DATE) IS ALSO AVAILABLE. THE PRIMARY PICKUP DATE IS THE DAY AFTER THE AUCTION ENDS. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.