Bragi The Headphone Truly Wireless Earphones 400 Bragi The Headphone Truly Wireless Bluetooth Smart Earphones ■ Bragi "The Headphone" are completely wireless earphones that fit into the ear canal. ■ Connects even between units via Bluetooth. ■ Supports audio codecs such as AAC and SBC, providing high sound quality. ■ Equipped with BA speakers, enabling a rich and dynamic stereo experience. ■ Compatible with the A2DP profile for music transfer and playback. ■ Charging is done by connecting a USB cable to the case while the earphones are set in the case (the case does not have a built-in battery). ■ Audio Transparency function: A function that allows you to hear the surrounding sounds even while wearing the earphones. The microphone on the outside of the earphones picks up the surrounding sounds and plays them through the earphones. ■ Using the three buttons on the right earphone, you can operate the following functions: Play/Pause/Answer calls Next song Previous song Increase volume/Decrease volume Audio Transparency ON/OFF ■ Continuous music playback time: Approximately 6 hours ■ Standby time: 250 hours ■ Compatible devices: Smartphones, PCs, laptops, etc. with Bluetooth functionality ■ Bluetooth 4.0 ■ Body color: Black ■ Body weight: 127g ■ Wearing type: In-ear ■ Battery: 100mAh ■ Full charge time: Less than 2 hours ■ Accessories: Ear tips (S, M, L), charging/storage carrying case, USB cable, user guide Brand new, unopened. The box has some minor damage. Shipping included. I am not familiar with the product, so please make your judgment based on the images. I am sorry, but I cannot ship to those living on remote islands, so please refrain from purchasing. Sapporo and Hakodate in Hokkaido are not treated as remote islands (for those within Hokkaido). Okinawa Prefecture, Oshima in Tokyo, and Sado in Niigata are treated as remote islands.