Brand Name: Sivir Style: Tws in-ear headphones Vocalism Principle: Dynamic Origin: Mainland China Material: PVC High-concerned chemical: None Communication: WireLess Volume Control: No Category: Earphones & Headphones Active Noise-Cancellation: Yes Sound Isolating: Yes Waterproof: Yes Voice assistant built-in: Yes Wireless Type: Bluetooth Connectors: Type c Bluetooth Version: 5.3 Charging Method: Charging case Function: for Video Game Function: Sport Function: For Outdoor Battery Capacity[mAh]: 400 Maximum wireless range[m]: <10m With Microphone: Yes