Brand Name: mifo Mifo Model: HiFiFree Style: Wired in-ear headphones Vocalism Principle: Dynamic Origin: Mainland China Material: PVC Communication: Wireless Volume Control: Yes Category: Earphones & Headphones Certification: CE Impedance Range: up to 32 Ω Headphone Pads Material: Soft Foam Active Noise-Cancellation: No Sound Isolating: Yes Waterproof: Yes Frequency Response Range: 20 - 20000 Voice assistant built-in: No Wireless Type: Bluetooth Package List: User Manual Package List: Charging Cable Control Button: No Codecs: AAC Codecs: sbc Is wireless: Yes Weight[g]: 65 NFC Technology: No Bluetooth Version: 5.3 Battery life up to[hours]: 15 Charging Method: cable Support Memory Card: No Support APP: Yes Battery Capacity[mAh]: 100 Maximum wireless range[m]: 10m-20m With Microphone: Yes Features: With microphone