1. [Open-ear headphones] Open-ear headphones are not in-ear and are equipped with soft silicone ear hooks. Even if worn for a long time, they will not cause pressure or pain and are easy to put on and take off. The headphones transmit sound in a directional manner, and the Bluetooth headphones with built-in microphones can also ensure your safety in outdoor activities such as driving, cycling, and hiking. 2. [Bluetooth 5.4] The newly upgraded Bluetooth 5.4 has higher audio transmission quality, more stable connection, and lower transmission delay. After Bluetooth pairing, take out the wireless headphones from the charging box within the connection distance (10m), and they will automatically connect to the mobile phone without waiting. 3. [Extremely long battery life] The headphone box has a battery life of up to 48 hours, and the headphone has a battery life of up to 7 hours. The ultra-long battery life allows you to worry-free outdoors. The convenient rechargeable battery compartment can maintain continuous playback. It only takes 1 hour to charge the wireless headphones. It automatically shuts down when fully charged. 4. [Lossless noise reduction-HIFI sound quality] 360°ACS panoramic spatial sound effect, high frequency transparent, mid-frequency delicate, low frequency thick, 14.2mm dual dynamic unit, DT 3.0 directional sound transmission, high-resolution audio encoding, adaptive sound quality adjustment, restore more sound details, allowing you to experience an immersive sound quality experience.