New and unopened. Please refrain from negotiating prices. The following is quoted from the store description: TRUEFREE EarFit DS1 - Open-Ear Wireless Earphones Bluetooth 6.0/IPX5 Waterproof/40-Hour Playback/Multipoint Connection/Fast Charging/Dedicated App Compatible | Perfect for commuting, exercise, office, and housework. Designed to stay in place, with active sound leakage suppression, ear hook style earphones that don't block the ear, black. [12mm x 17mm Dual Magnetic Drivers & Active Sound Leakage Suppression Technology] The 12 x 17mm large-diameter dual magnetic dynamic drivers reproduce clear sound that balances deep bass and delicate high-frequency details. The newly developed "Active Sound Leakage Suppression Algorithm" analyzes and corrects all frequency bands in real-time, reducing sound leakage by up to 40% (based on our measurement standards). You can enjoy music without worrying about your surroundings even on trains or in crowded environments, realizing a design that considers privacy in public spaces. The 4-microphone AI hybrid microphone system and call noise canceling technology transmit clear voices to the other party even in strong winds or noisy environments. (Bluetooth codecs: SBC, AAC supported) [Bluetooth 6.0 & 2-Device Simultaneous Connection - Office 20m/0.06-second Delay] Equipped with the latest Bluetooth 6.0, it can connect up to 20m even in an average Japanese office environment (self-verification). Simultaneous connection of 2 devices, such as smartphones, PCs, and tablets, allows automatic switching between PC conferences and smartphone calls. In game mode, an ultra-low latency of approximately 0.06 seconds is achieved, allowing you to detect enemy footsteps and skill activation sounds faster than other players. [40-Hour Ultra-Durable & 10-Minute Fast Charging - One-Week Charging-Free Design] The industry's top-class large capacity of 10 hours for the main unit + 30 hours for the charging case (our laboratory data) means you don't need to charge even during long-distance travel such as a round trip on the Shinkansen between Tokyo and Osaka (about 6 hours). With 10 minutes of fast charging, you can use it for up to 2 hours, so charging during your morning preparations will completely cover your commute time. The LED display on the charging case allows you to visually manage the remaining battery, eliminating the anxiety of running out of battery.