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: Synthetic Leather Active Noise-Cancellation: Yes Sound Isolating: Yes Waterproof: Yes Frequency Response Range: 20 - 2000 Magnet Type: Neodymium Voice assistant built-in: Yes Wireless Type: Bluetooth Resistance: 32Ω Line Length: 0.8m Package List: charger Height[mm]: 110 Control Button: Yes Width[mm]: 80 Driver Diameter: 40 Depth[mm]: 170 Sensitivity: 84dB Is wireless: Yes Weight[g]: 170 NFC Technology: no Connectors: USB Earcups Type: Sealed Bluetooth Version: 5.3 Battery life up to[hours]: 20 Total Harmonic Distortion: 0.11 Charging Method: cable Max Output: 128 Support Memory Card: Yes Support APP: No Function: for Video Game Function: Common Headphone Function: For Mobile Phone Function: HiFi Headphone Function: Sport Function: Kids' Headphones Function: For Hearing Aid Function: For Office Function: For Sleep Function: For Study Battery Capacity[mAh]: 400 Maximum wireless range[m]: <10m With Microphone: Yes Frequency: 2.40GHz-2.48GHz version: bluetooth V5.3 effective distance: 10-15meters Support system: Mobile Phone,Computer TV all have bluetooth function color: red,blue,green,rose,orange gold etc. Playing time: 20hours Power supply: powered by rechargeable 400MAH battery charge time: about 3hours TF function: support TF card playing material: ROHS material