Universal Bone Conduction Earphone Wireless Bluetooth 4.2 Sports Stereo Headset. Features: COMFORT WEARING - Be Free to Choose Exchange Your Left and Right Ear Wearing, with Glasses Do Not Affect the Wear. Compatible ForiOS, for Android, for WP System, As Long As the Devices Have Bluetooth, It Can Be Used. Bluetooth 4.2 Bone Conduction Headphone SINGLE EAR HOOK TYPE HEADPHONES - Small and Covert, More Comfortable. is Very Light Painless Wearing in Long Time Use, Latest Concept Ergonomics Design Fully Fit Outside the Auricle. CLEAR CALL AND HIGH QULITY - Built-in High-performance Lithium Battery, 5-6 Hours Continuous Play, 5-6hours Continuous Call, 1-2hours Fast Charge. SPEAKER UNIT IS EXTERNAL - Loudspeaker Close To the Ear but It is Not Inside the Ear. It Will Help Listens To the Surroundings at the Same Time, Let You Keep Safety for Biking, Running, Driving and More Portable for Business, Work. Specifications: Style: Neck-mounted Certification: CE Vocalism Principle: Other Control Button: Yes Active Noise-Cancellation: Yes Communication: Wireless Volume Control: Yes Sensitivity: 1205dBdB Wireless Type: Bluetooth Is Wireless: No Line Length: Nonem Support APP: No Function: For Mobile Phone Model Number: Bone Conduction Bluetooth Headset Support Memory Card: No Resistance: 39 Waterproof: No With Microphone: Yes Package Included: 1 * USB Cable 1 * Bone Conduction Headphone 1*manual . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.