[Immersive sound and automatic pairing] the Bluetooth headphones have a unique stereo design, a dynamic 13 mm graphene audio driver and AAC/SBC audio coding technology, it captures every detail of the music and 43% bass amplification. The wireless Bluetooth headphones can automatically turn on and connect to the last paired device (1S) when you open the charging box, avoiding lengthy operations and saving waiting times.[Crystal clear calls and 4 microphones] the wireless headphones use ambient noise cancellation (ENC) and 4 HD mic, the ambient noise is reduced by more than 38 dB, ensuring that your voice is heard clearly at the other end. The pocket-sized charging case does not take up extra space and can be taken anywhere. Noise reduction earbuds are ideal for making calls, listening to music, watching videos, working and playing.[2024 upgraded Bluetooth 5.3] The in-ear headphones are equipped with the advanced Bluetooth 5.3 chip and two-channel transmission offer an unprecedented audio experience with faster transmission speeds and more stable signal connections (75% more stable than Bluetooth 5.2). Bluetooth headphones in ear with a stable connections distance of up to 15 m, you can easily control your music and phone at home, in the office and during your movement.[LED charging case and 40 hours playtime] Q13 in-ear headphones Bluetooth are equipped with an intelligent digital LED display that can accurately display the remaining power in digital format. In-ear headphones have a battery life of 7 hours. With the included charging box, the Bluetooth in-ear headset can be used for a total of 40 hours. With USB-C fast charging technology, you can enjoy 1 hour of music after 10 minutes of charging the earphones.[Ergonomic comfortable fit and IP7 waterproof] with ergonomic half-in-ear design and a weight of only 3.2 g (a wireless headphone), Bluetooth sports headphones offer you a stable and comfortable wearing experience. Ensures a fatigue-free listening experience no matter how long you use it. The earbuds have IP7 protection to effectively protect the device from sweat, rain and water, so you can enjoy your music in any weather.