Latest Bluetooth 5.3 and High-Fidelity Sound Quality: This product is certified with the Technical Regulations Conformity Mark (Frequency band: 2.40-2.48GHz). Our wireless earbuds utilize advanced Bluetooth 5.3 technology and antenna technology, providing fast and stable transmission within a 15m Bluetooth range. The built-in high-quality audio chip captures every detail of the music, delivering clear highs and rich sound with moderate bass. ENC call noise-canceling technology reduces ambient noise and echo, achieving clear Bluetooth earphone Hi-Fi sound. Automatic Pairing and Smart Touch Control: Simply take the wireless earbuds out of the magnetic charging case, and they will automatically turn on and connect to your device. The smart touch control design allows for stress-free touch operation, enabling basic operations such as track forward/backward, music play/pause, answering/ending/rejecting calls, power on/off, and volume adjustment with simple touch controls. Type-C Fast Charging & 36 Hours of Playback: The portable charging case, equipped with an ultra-lightweight and high-capacity 3200mAh lithium battery, allows you to enjoy music and calls continuously for over 5-6 hours on a single charge. With a total of up to 36 hours of use with the charging case, you don't have to worry about running out of battery during use. The Type-C port supports fast charging, making charging even faster. Even if the earbuds run out of battery, a 10-minute charge provides 60 minutes of playback. Shipping will be done by putting the product in an envelope as is, without using cushioning materials, using the original consumer packaging.