Brand Name: CATASSU Style: Wired in-ear headphones Vocalism Principle: Dynamic Origin: Mainland China Material: Plastic High-concerned chemical: None Communication: WireLess Volume Control: Yes Category: Earphones & Headphones Certification: CE Certification: FCC Certification: RoHS Number Of Drivers: 2 Plug Type: Line Type Impedance Range: up to 32 Ω Headphone Pads Material: Memory Foam Active Noise-Cancellation: Yes Sound Isolating: Yes Waterproof: Yes Frequency Response Range: 20 - 20000 Magnet Type: Neodymium Voice assistant built-in: Yes Wireless Type: Bluetooth Resistance: 32Ω Line Length: 1None Package List: User Manual Package List: Charging Cable Height[mm]: 180 Control Button: Yes Width[mm]: 80 Driver Diameter: 40 Depth[mm]: 170 Sensitivity: 92dB Is wireless: Yes Weight[g]: 165 NFC Technology: Yes Connectors: USB Earcups Type: Sealed Bluetooth Version: 5.3 Battery life up to[hours]: 20 Total Harmonic Distortion: 0.5 Charging Method: cable Max Output: 128 Support Memory Card: Yes Support APP: No Function: Monitor Headphone Function: for Video Game Function: Common Headphone Function: For Mobile Phone Function: HiFi Headphone Function: Sport Function: Kids' Headphones Function: For Outdoor Function: For Office Function: For Study Battery Capacity[mAh]: 400 Maximum wireless range[m]: <10m With Microphone: Yes Features: With microphone Frequency: 2.40GHz-2.48GHz version: bluetooth V5.3 effective distance: about 10-15meters Support system: Mobile Phone,Computer TV all have bluetooth function color: red,blue,orange,pink,green,black... Playing time: >15hours,powered by rechargeable 400MAH battery charge time: about 2.5hours Speaker: high quality 40 mm diameter speaker MP3 mode: support SD card playing MP3