1-4pcs 3.5mm Single Side Mono Earphone In Ear Earbud Headset Headphone For Phone Mp3 Walkie Talkie Computer Bluetooth Tablet Pc

High-concerned chemical : None Material : Metal Category : Earphones & Headphones Function : Monitor Headphone Active Noise-Cancellation : Yes Volume Control : No Control Button : No Vocalism Principle : Dynamic Wireless Type : None Connectors : 3.5 MM Communication : Wired Style : In-ear Certification : NONE Origin : Mainland China Brand Name : Shunmaii