Air-31 Wireless Bluetooth Headset Transparent ENC Power Digital Display Stereo Sound Earphones for all smartphone

Material : ABS Weight[g] : 34 Battery Capacity[mAh] : 300 Battery life up to[hours] : 5 Voice assistant built-in : YES Maximum wireless range[m] : 10m-20m NFC Technology : No Sound Isolating : YES Category : Earphones & Headphones Max Output : 30mW Number Of Drivers : 2 Charging Method : Charging case Headphone Pads Material : Silicone Magnet Type : Neodymium Driver Diameter : 13mm Total Harmonic Distortion : 20% Impedance Range : up to 32 Ω Bluetooth Version : 5.3 Package List : User Manual,Charging case,Charging Cable Codecs : NONE With Microphone : Yes Is wireless : Yes Support APP : No Support Memory Card : No Waterproof : Yes Resistance : 32Ω Line Length : 0m Frequency Response Range : 20 - 20000Hz Sensitivity : 100dB Active Noise-Cancellation : Yes Volume Control : Yes Control Button : Yes Vocalism Principle : Hybrid technology Wireless Type : bluetooth Connectors : Type c Communication : True Wireless Style : In-ear Origin : Mainland China Brand Name : jiansu