Item Condition : New<br>High-concerned chemical : None<br>Material : ABS,Plastic<br>Width[mm] : 40<br>Depth[mm] : 50<br>Weight[g] : 40<br>Height[mm] : 20<br>Battery Capacity[mAh] : 300<br>Battery life up to[hours] : 12<br>Voice assistant built-in : Yes<br>Maximum wireless range[m] : <10m<br>NFC Technology : Yes<br>Sound Isolating : Yes<br>Category : Earphones & Headphones<br>Earcups Type : Semi-open<br>Max Output : 123<br>Number Of Drivers : 2<br>Charging Method : Charging case<br>Headphone Pads Material : Other<br>Magnet Type : Other<br>Driver Diameter : 5<br>Total Harmonic Distortion : 1<br>Impedance Range : up to 32 Ω<br>Bluetooth Version : 5.3<br>Package List : User Manual,Charging case,Charging Cable<br>Features : Waterproof,With microphone,Amazon Alexa Support,Apple Siri Support,Active Noice Cancelling,Dual Connection,Google Assistant Support<br>Codecs : AAC<br>With Microphone : Yes<br>Is wireless : Yes<br>Support APP : Yes<br>Waterproof : Yes<br>Line Length : 1<br>Sensitivity : 123<br>Plug Type : L Bending<br>Function : Monitor Headphone,for Video Game,Common Headphone,For Mobile Phone,HiFi Headphone,Sport<br>Active Noise-Cancellation : Yes<br>Volume Control : Yes<br>Control Button : Yes<br>Vocalism Principle : Dynamic<br>Wireless Type : Bluetooth<br>Connectors : None<br>Communication : True wireless<br>Style : Wireless headphone & headset<br>Certification : CE,FCC,RoHS<br>Origin : Mainland China<br>Brand Name : BULIAN<br>Resistance : 32<br>Model Number : Pro4,Pro4 TWS<br>