Waterproof Bluetooth Earphone Bluetooth Aluminum Alloy Wireless Headphones With Microphone Bilateral Stereo Neckband Headphones

High-concerned chemical : None Material : ABS,Plastic Width[mm] : 50 Depth[mm] : 80 Weight[g] : 60 Height[mm] : 20 Battery Capacity[mAh] : 900 Battery life up to[hours] : 8 Voice assistant built-in : Yes Maximum wireless range[m] : <10m NFC Technology : Yes Sound Isolating : Yes Category : Earphones & Headphones Earcups Type : Semi-open Max Output : 110mW 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 : charger,Charging Cable Codecs : AAC With Microphone : Yes Is wireless : Yes Support APP : Yes Waterproof : No Sensitivity : 123dB Plug Type : NONE Active Noise-Cancellation : Yes Volume Control : Yes Control Button : Yes Vocalism Principle : Balanced Armature Wireless Type : Bluetooth Connectors : None Communication : WireLess Style : Wireless headphone & headset Resistance : 32 Support Memory Card : No material: aluminum alloy length: 21.5cm(8.46in) * 16.5cm(6.50in) * 2.8cm(1.10in) packing: 1pc Label:Yes