HX-831 Waterproof Neckband Headset BT 5.0 Sweatproof Workout Headphones Noise Canceling Stereo Retractable Earbuds with Mic

High-concerned chemical : None Material : ABS Weight[g] : 100.00 Category : Earphones & Headphones Package List : User Manual,Charging Cable,Replaceable Pads Set Features : Waterproof,Active Noice Cancelling Waterproof : Yes Line Length : [object Object]m Sensitivity : [object Object]dB Active Noise-Cancellation : No Volume Control : Yes Control Button : Yes Vocalism Principle : Dynamic Wireless Type : Bluetooth Communication : WireLess Style : Neckband headphones Certification : None Origin : Mainland China Brand Name : Shunmaii Resistance : [object Object] Origin : Mainland China Style : Neckband Communication : Wireless Wireless Type : Bluetooth-Compatible Vocalism Principle : Dynamic Control Button : Yes Volume Control : Yes Frequency Response Range : @@Hz Category : Earphones & Headphones Material : ABS