ltem description from the seller
High-concerned chemical:None;
Material:ABS,Plastic;
Width[mm]:70;
Depth[mm]:120;
Weight[g]:45;
Height[mm]:20;
Battery Capacity[mAh]:600;
Voice assistant built-in:Yes;
Maximum wireless range[m]:<10m;
NFC Technology:Yes;
Sound Isolating:Yes;
Category:Earphones & Headphones;
Earcups Type:Semi-open;
Number Of Drivers:2;
Charging Method:cable;
Headphone Pads Material:Silicone;
Magnet Type:Other;
Driver Diameter:5mm;
Total Harmonic Distortion:1%;
Impedance Range:up to 32 Ω;
Bluetooth Version:5.3;
Package List:User Manual;
Features:Waterproof,With microphone,Active Noice Cancelling,Dual Connection;
Codecs:AAC;
With Microphone:Yes;
Is wireless:Yes;
Support APP:Yes;
Waterproof:Yes;
Plug Type:None;
Function:For Internet Bar,for Video Game,Common Headphone,For Mobile Phone,Sport,For Outdoor,For Office,For Sleep,For Study;
Active Noise-Cancellation:Yes;
Volume Control:Yes;
Control Button:Yes;
Vocalism Principle:Other;
Wireless Type:Bluetooth;
Connectors:USB;
Communication:WireLess;
Style:Wireless headphone & headset;
Certification:CE,FCC,RoHS;
Origin:Mainland China;
Brand Name:CHUBAN;
Resistance:32;