?Excellent Bass? The earphones use 13mm composite diaphragm speakers. It allows you to enjoy excellent bass and HIFI sound quality. ?Game/Music Mode? The game/music mode can be switched by key operation to meet the needs of different usage scenarios. ?Low Latency Game Mode? 45ms low latency There is a sound effect adjustment function in the game mode, and the subtle sound can also be captured to clearly distinguish the enemy's position ?Long battery life? When fully charged,The headsets can work for about 6 hours. The charging case provides about 25 hours of battery life for the earphones. ?Seamless Switching Between Single and Dual Use? Without master-slave device, intelligent switch between single and dual use and skip pairing them again. ?Advanced Bluetooth 5.2 Technology? Create a strong connection for skip-free audio with Bluetooth 5.2 technology ,Greatly improve the transmission speed and effectively lower power consumption. ?Universal adaptability? It works with all IOS and Android devices with bluetooth capability. Mobile phones, tablets, laptops, etc. ?With HD Microphone? Microphone with Smart Noise Cancellation that lets you talk in HD. Feature 1. Bluetooth V5.2 , support most Bluetooth devices, lower power consumption 2. The 400mAh charging case can charge 2 earphones about 5 times, providing more 25 hours of music time 3. With waterproof technology, you don't have to worry about water and sweat anymore 4. 13mm dual drive unit, enjoy 9D strong and deep bass music sound 5. Popular touch function, support for switching songs, calls and call voice assistant Parts List: 2* Bluetooth headset 1* Charging case 1* USB cable 1* User Manual