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High-concerned chemical : None Material : Plastic Category : Earphones & Headphones With Microphone : Yes Waterproof : Yes Function : Common Headphone,HiFi Headphone,For Outdoor,For Office Active Noise-Cancellation : Yes Volume Control : No Control Button : Yes Vocalism Principle : Other Wireless Type : Bluetooth Communication : WireLess Style : Ear Hook Certification : CE Origin : Mainland China Brand Name : 696