Model: AX9 Material: ABS Waterproof grade: IPX6 Bluetooth version: 5.2 Horn impedance: 32Q Transmission distance: 10 meters Playback time: approximately 10 hours Standby time: approximately 100H Signal to noise ratio: 94db Sensitivity: 90.5DB Frequency response range: 20HZ-20KHZ Headphone battery capacity: 60mAh Charging compartment battery: 400mAh Packaging list: earphones * 1 pair, charging cable * 1, charging compartment * 1, user manual * 1, earmuffs 1.The earbuds applies Bluetooth V5.2 technology to ensure a stable connection for pairing. Whether you are running or training, you can enjoy your favorite music smoothly and make the process of exercise less boring. 2.The headset can not only play audio, but also make voice calls. It can answer and hang up the phone through touch buttons, make daily work and life more convenient. 3.The earhuds can last for 8-10 Hours music time, and the built in charging case can charge the headphones anytime and anywhere, providing an additional 30 hours of playing music. Whether you're exercising at home, running outdoors or commuting to work, you can achieve musical freedom with these wireless bluetooth earhuds. 4.Bluetooth earbuds pairing is simple. After the first connection, these wireless headphones will automatically connect to your device as soon as you take out them from the charging case again.And since the headset equipped with a touch button,you can easily control music and voice call. 5.These wireless earbuds has designed ear hooks for sports, which makes the headset more stable and will not fall down even during the movement.