Used: For Lost Replacement Sell: Original Single Parts of Freebuds 4i Charging Method: Charging case Brand Name: Huawei Material: Metal Communication: True wireless Connectors: Type c Style: In-ear Is wireless: Yes Vocalism Principle: Dynamic Support Memory Card: No Origin: Mainland China Active Noise-Cancellation: Yes Certification: CE With Microphone: Yes Wireless Type: Bluetooth Headphone Pads Material: Silicone Function: for Video Game Function: Common Headphone Function: For Mobile Phone Function: HiFi Headphone Function: Sport Support APP: Yes Impedance Range: from 33 to 100 Ω Control Button: No Volume Control: No Category: Earphones & Headphones Magnet Type: other Choice: yes semi_Choice: yes