Number Of Drivers: 2 Sound Isolating: Yes Charging Method: Charging case Brand Name: MIJIA Material: PVC Material: ABS Material: Silica Gel Communication: Wireless Resistance: 32 Connectors: Type c Style: In-ear Frequency Response Range: 20 - 20000 Waterproof: Yes Is wireless: Yes Vocalism Principle: Hybrid Technology Origin: Mainland China Active Noise-Cancellation: Yes Certification: CE Total Harmonic Distortion: 2 Wireless Type: Bluetooth Weight[g]: 70 Battery life up to[hours]: 18 Codecs: AAC Codecs: sbc Sensitivity: 46 Function: Monitor Headphone Function: for Video Game Function: HiFi Headphone Function: Sport Function: For Outdoor Function: For Swimming Function: For DJ Function: For Study Maximum wireless range[m]: 10m-20m Features: Waterproof Features: Active Noice Cancelling Impedance Range: up to 32 Ω Bluetooth Version: 5.2 Control Button: Yes Battery Capacity[mAh]: 300 Volume Control: Yes Category: Earphones & Headphones Package List: User Manual Package List: Charging case Max Output: 100 With Microphone: Yes Choice: yes semi_Choice: yes