I purchased this myself around this spring, but I haven't used it and have been storing it at home. Please note that I have opened the box once to check the contents. I would like to sell it as soon as possible, so I am willing to offer a small discount. -------------------------------------------------- ・Manufacturer's suggested retail price: 27,500 yen (tax included) ・Latest Bluetooth 5.2, supported codecs: SBC/AAC/aptX/aptX Adaptive ・Advanced ANC (natural noise canceling) compatible ・Listening Care equipped, with sound quality correction ・External sound input, music-focused sound design ・Continuous playback: Approximately 6 hours with ANC on / 22 hours including the mobile case ・Waterproof IPX5, high-performance microphone for calls (Clear Voice Capture) #WirelessEarphones #YAMAHA