Latest Bluetooth 5.3: Bluetooth headphones use advanced Bluetooth 5.3 technology and supports the profiles HSP, HFP, A2DP and AVRCP, which greatly improves the transmission speed and strengthens the connection stability. There is no delay or deterioration of signal quality in music playback and calls. Whether you are at home, in the office or on the go, you can easily control your music and phone within a range of 15 m. Unparalleled sound quality: wireless Bluetooth headphones use 8 mm speakers and TOZO OrigX 2.0 acoustic technology. In-ear headphones accentuate the richness of bass and ensure that voices and high tones are reproduced naturally and in detail, creating CD quality sound. Prepare for the ultimate sound experience. 55 hours of battery life: the wireless Bluetooth headphones in ear offer you the freedom to add to thousands of songs. A single charge is enough for 10 hours, and the total playing time with the charging case is 55 hours. It also supports wireless charging, so you can charge it conveniently without cables or plugs. Comfortable fit thanks to ergonomic design: in-ear Bluetooth headphones with lightweight design and ergonomic shape that reduce the strain on the ear and guarantee a comfortable fit in any ear. You can wear it comfortably while sleeping, exercising, studying, video conferencing and commuting. Plus, the earplugs are available in different sizes so you can find the perfect ear caps for a personalised and extremely comfortable fit. IPX8 Waterproof The TOZO T10 in-ear earphones feature IPX8 waterproof nano coating, which can effectively prevent sweat and raindrops and extend the life of the earbuds. Very suitable for running, swimming, cycling and other sports. Compatible with TOZO App: You can download the TOZO app on your phone and connect the Bluetooth headphones to the app to then freely switch between 16 different EQ modes in the app and explore different music styles. Customize your listening experience by changing certain frequencies and enjoy listening.