avantree relay - premium airplane bluetooth adapter with advanced qualcomm chipset, 2 headphones support, 25hrs play time, aptx adaptive & hd audio transmitter for airpods, bose & travel flight 3-midnight blue is up for auction in Electronics. The current bid is $1.50, 96% below the $34.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.