Description: Bluetooth-compatible version: V5.2 Speaker: bone conduction vibrator speaker Battery: 300MAH Music playback time: about 25 hours Bluetooth-compatible distance: about 20 meters Frequency: 20Hz-20KHz Impedance: 32 Sensitivity: 85dB/mW Waterproof grade: IPX 5 Supported functions: music playback, pause. Answer the call, reject the call, display the battery level, automatically connect back, summon the siri voice assistant, etc., caller ID. Specifications: feature: [LED power digital display] Humanized design, easy to control the power of the headset, no longer have to worry about the headset can not see the power Immersive Music ExperienceThe 8-core driver enhances the sound quality, and the crystal-clear sound brings you as close as possible to the feeling of listening to your favorite music live. Stable and fast signal transmissionAdopt professional Bluetooth-compatible 5.2 chipset, low power consumption technology, stable signal transmission, prolong playing time. Comfortable In-EarErgonomic in-ear earbuds and ear hooks bring comfort, even if you wear it for a long time, it will not feel heavy, and the left and right ears can be adjusted according to different ear types [HD noise reduction call] Physical noise reduction wireless high-definition call, so that audio and video calls can also be called normally during exercise like face-to-face conversations Package Included: 1*Headphone 1*Charging Cable 1*Manual Notes: Due to differences between different monitors, the pictures may not reflect the actual color of the item. Compare the detail size with your size, please allow 1-3cm error due to manual measurement. If there is a problem with the product, please leave a message before giving bad feedback. Thanks for your understanding.