High-concerned chemical : None<br>Material : Metal,ABS<br>Weight[g] : 110<br>Battery Capacity[mAh] : 800mAh<br>Battery life up to[hours] : 6 Hours Music<br>Voice assistant built-in : Yes<br>Maximum wireless range[m] : 10m-20m<br>NFC Technology : No<br>Sound Isolating : Yes<br>Category : Earphones & Headphones<br>Earcups Type : Semi-open<br>Max Output : 25mW<br>Number Of Drivers : 2<br>Charging Method : Charging case<br>Headphone Pads Material : Silicone<br>Magnet Type : Neodymium<br>Driver Diameter : 13mm<br>Total Harmonic Distortion : 0.7%<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,Apple Siri Support,Dual Connection,Playback Control,Google Assistant Support<br>Codecs : AAC,sbc<br>With Microphone : Yes<br>Is wireless : Yes<br>Support APP : No<br>Waterproof : Yes<br>Frequency Response Range : 20 - 20000Hz<br>Sensitivity : 106dB<br>Plug Type : None<br>Function : for Video Game,Common Headphone,For Mobile Phone,HiFi Headphone,Sport,For Outdoor<br>Active Noise-Cancellation : No<br>Volume Control : Yes<br>Vocalism Principle : Dynamic<br>Wireless Type : Bluetooth<br>Connectors : Type c<br>Communication : True wireless<br>Style : Tws in-ear headphones<br>Certification : CE<br>Origin : Mainland China<br>Brand Name : GREATWALL<br>Support Memory Card : No<br>