Edifier X2S True Wireless in Ear Earbuds, Bluetooth 5.3, 13Mm Dynamic Drivers, Deep Bass, Lightweight, Ai Environmental Noise Cancelling, Custom Sound, Ip54 Water Dust Resistant, Black * Up to 26 hours of playtime Clear call quality Enjoy high-quality music with the customized tuned 13mm drivers Low latency under the game mode, enjoy seamless video experience as well Personalize EQ controls and more at Edifier Connect APP IP54-certified dust and sweat proof * Curved Surface and Semi-in-Ear 0.1 Degree for Optimum Comfort After thousands of experimental tests, the earbuds' entry angle into the ears is optimized with a precision of * 0.1 degrees to facilitate comfortable and secure wearing. * Weighs Only 3.6g Feathery Light, No-Pressure Wearing Lightweight Short Stem Semi-In-Ear Design. Small in size, the earbud is as light as 3.6g, bringing you no burden even after long-time wearing. * Bluetooth V5.3 For Fast and Steady Performance Bring more stable and smooth connection for your wonderful experience * 26 Hours Long Battery Life For All-Day Enjoyment Edifier Acoustics Laboratory selected titanized composite diaphragm to improve sound quality and create richer and more delicate sounds. Featuring surging bass and crystal-clear mid-range and treble, the earbuds present CD-level original sounds. * AI Algorithm Enviromental Noise Cancellation Clear Sound Quality Equipped with the new-generation algorithm, the earbuds can be used in multiple scenarios to reduce environmental noise, enhance human voice, and improve sound clarity and fidelity. Even in a noisy environment, you can enjoy clear calls. * Master-Slave Switching For Convenient and Comfortable Wearing Using one or two earbuds, you can immerse yourself in wonderful listening in both ways. * Powerful Sound, Surging Bass, Melodious Mid-Treble Built-in 13mm large-size unit, the earbuds present dynamic performance and excellent details, furnishing you with soul-stirring sound.