FEATURES With microphone: Yes Wireless Type: bluetooth Weight[g]: 0.2 Waterproof: Yes Volume Control: Yes Built-in voice assistant: YES Principle of Vocalism: Bone Conduction Total Harmonic Distortion: 1% Style: Ear Hook Sensitivity: 98dB Resistance: 50Ω Packing List: User Manual Packing List: Charging case Package List: USB Type-C Adapter Origin: Mainland China Number of Drivers: 2 Maximum wireless range[m]: 10m-20m Maximum Output: 32mW Material: TPU Magnet Type: Other Line Length: 0m Is it wireless: Yes Impedance Range: 33 to 100 Ω Ear Pads Material: Other Function: Sports Function: For Outdoor Function: HiFi Headphone Function: For sleeping Function: For Video Game Function: Common Headphone Function: Monitor Headphones Function: For work Frequency Response Range: 50 - 20000Hz Features: Active Noise Cancellation Features: With microphone Features: waterproof Features: Dual Connection Headphone Type: Open-back Driver Diameter: 10.2mm Control Button: Yes Connectors: Type c Communication: True Wireless Codecs: AAC Codecs: Apt-X HD codecs: sbc Charging Method: Charging status Certification: EAC Certification: CE Category: In-Ear Headphones Bluetooth Version: 5.3 Battery life up to [hours]: 140 Battery Capacity[mAh]: 350